Science vocabulary (science)
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The document defines science vocabulary terms for 3rd grade including: life cycle, embryo, germinate, heredity, characteristics passed from parents to offspring such as color, flowering plants that produce seeds in flowers, conifers like pine and spruce trees that produce seeds in cones, pollen as a powdery material needed by eggs to make seeds which can be transferred by wind, insects or birds, cuttings as pieces of a parent plant used to grow a new plant, and a bulb as an underground stem.
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Asexual Reproduction
Asexual reproduction produces identical offspring through several methods. These include binary fission in bacteria and protozoa, budding in yeast and hydra, spore formation in fungi and algae, regeneration of lost body parts in simple animals, and vegetative propagation through various structures in plants like bulbs, tubers, stolons, and rhizomes. Vegetative propagation can also be artificially induced through plant cuttings, layering, and grafting to reproduce plants with desirable traits.
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PMR Form 3 Science Chapter 4 Plant Reproduction
The document discusses plant reproduction through both sexual and asexual means. Sexually, flowering plants reproduce through flowers, pollination, fertilization, and the production of seeds contained in fruits. Asexually, plants can reproduce through vegetative structures like stems, leaves, and roots. The summary discusses the key stages of sexual reproduction from germination through pollination and fertilization leading to seed and fruit development. It also mentions some common forms of asexual reproduction like runners and bulbs.
Chapter 24 lecture- Seeds
The document discusses reproduction in gymnosperms and angiosperms. It explains that gymnosperms reproduce using cones that produce male gametophytes (pollen grains) or female gametophytes. If a pollen grain lands on a female cone and enters an ovule, fertilization can occur. In angiosperms, reproduction occurs within flowers, which contain anthers that produce pollen and carpels containing ovules. Fertilization involves a pollen tube entering an ovule and releasing sperm to fertilize an egg, forming a zygote.
Asexual reproduction of a flowering plant
Vegetative propagation is a form of asexual reproduction used by plants to produce offspring without seeds, pollen, or flowers. The offspring are genetically identical to the parent plant. Vegetative propagation can occur naturally through modified plant structures like stems, roots, leaves, and buds, or can be induced artificially through methods like cuttings, grafting, and tissue culture. Vegetative propagation is advantageous for gardeners because it allows desirable plant traits to be reproduced rapidly and in large quantities.
Plant reproduction
Flowering plants have evolved various reproductive structures and processes to facilitate reproduction. Flowers produce male pollen and female ovules that are necessary for fertilization. Key flower parts include sepals, petals, stamens, and carpels. Pollination involves the transfer of pollen grains between flower stamens to carpels. This leads to fertilization within the ovule and formation of seeds. Seeds contain embryos and food reserves to allow for dispersal and germination into new plants under suitable conditions of water, oxygen, and temperature. Seed dispersal mechanisms include wind, animals, water, and mechanical forces. Germination begins with water uptake and radicle emergence from the seed.
Reproduction
Plants reproduce both sexually and asexually. In plants, the life cycle involves an alternation of generations between haploid and diploid stages. In the haploid stage, the gametophyte produces gametes through mitosis. In the diploid stage, the sporophyte produces spores through meiosis. Primitively, the gametophyte was the dominant stage but evolved to have the sporophyte as the dominant stage. Angiosperms have double fertilization where one sperm cell fertilizes the egg to form the embryo, and the other sperm cell fertilizes the central cell to form the endosperm which nourishes the embryo. The ovary develops into a fruit containing seeds which have a dorm
Asexual reproduction in plants
This document discusses asexual reproduction in plants, which is the formation of new individuals from a single parent's cells and does not allow for genetic variation. It describes different methods of vegetative reproduction like bulbs, underground stems, runners, and leaves, as well as artificial propagation techniques including stem cuttings, grafting, layering, and plant tissue culture. Examples are given for plants that reproduce through bulbs, underground stems, runners, and leaves.
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Asexual Reproduction
Asexual reproduction produces identical offspring through several methods. These include binary fission in bacteria and protozoa, budding in yeast and hydra, spore formation in fungi and algae, regeneration of lost body parts in simple animals, and vegetative propagation through various structures in plants like bulbs, tubers, stolons, and rhizomes. Vegetative propagation can also be artificially induced through plant cuttings, layering, and grafting to reproduce plants with desirable traits.
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This is a presentation about the ways of reproduction in non-vascular plants, the moss, liverwort, and hornwort.
PMR Form 3 Science Chapter 4 Plant Reproduction
The document discusses plant reproduction through both sexual and asexual means. Sexually, flowering plants reproduce through flowers, pollination, fertilization, and the production of seeds contained in fruits. Asexually, plants can reproduce through vegetative structures like stems, leaves, and roots. The summary discusses the key stages of sexual reproduction from germination through pollination and fertilization leading to seed and fruit development. It also mentions some common forms of asexual reproduction like runners and bulbs.
Chapter 24 lecture- Seeds
The document discusses reproduction in gymnosperms and angiosperms. It explains that gymnosperms reproduce using cones that produce male gametophytes (pollen grains) or female gametophytes. If a pollen grain lands on a female cone and enters an ovule, fertilization can occur. In angiosperms, reproduction occurs within flowers, which contain anthers that produce pollen and carpels containing ovules. Fertilization involves a pollen tube entering an ovule and releasing sperm to fertilize an egg, forming a zygote.
Asexual reproduction of a flowering plant
Vegetative propagation is a form of asexual reproduction used by plants to produce offspring without seeds, pollen, or flowers. The offspring are genetically identical to the parent plant. Vegetative propagation can occur naturally through modified plant structures like stems, roots, leaves, and buds, or can be induced artificially through methods like cuttings, grafting, and tissue culture. Vegetative propagation is advantageous for gardeners because it allows desirable plant traits to be reproduced rapidly and in large quantities.
Plant reproduction
Flowering plants have evolved various reproductive structures and processes to facilitate reproduction. Flowers produce male pollen and female ovules that are necessary for fertilization. Key flower parts include sepals, petals, stamens, and carpels. Pollination involves the transfer of pollen grains between flower stamens to carpels. This leads to fertilization within the ovule and formation of seeds. Seeds contain embryos and food reserves to allow for dispersal and germination into new plants under suitable conditions of water, oxygen, and temperature. Seed dispersal mechanisms include wind, animals, water, and mechanical forces. Germination begins with water uptake and radicle emergence from the seed.
Reproduction
Plants reproduce both sexually and asexually. In plants, the life cycle involves an alternation of generations between haploid and diploid stages. In the haploid stage, the gametophyte produces gametes through mitosis. In the diploid stage, the sporophyte produces spores through meiosis. Primitively, the gametophyte was the dominant stage but evolved to have the sporophyte as the dominant stage. Angiosperms have double fertilization where one sperm cell fertilizes the egg to form the embryo, and the other sperm cell fertilizes the central cell to form the endosperm which nourishes the embryo. The ovary develops into a fruit containing seeds which have a dorm
Asexual reproduction in plants
This document discusses asexual reproduction in plants, which is the formation of new individuals from a single parent's cells and does not allow for genetic variation. It describes different methods of vegetative reproduction like bulbs, underground stems, runners, and leaves, as well as artificial propagation techniques including stem cuttings, grafting, layering, and plant tissue culture. Examples are given for plants that reproduce through bulbs, underground stems, runners, and leaves.
Asexual reproduction
Asexual reproduction produces genetically identical offspring through processes such as binary fission, budding, spore formation, regeneration, and vegetative propagation. Binary fission involves a parent cell dividing into two equal daughter cells, while budding results in a parent organism dividing into an unequal parent and new bud. Spore formation produces single cells that can germinate into new individuals. Regeneration allows some animals like hydra and planaria to regrow lost body parts. Vegetative propagation uses plant parts like bulbs, tubers, stolons and rhizomes to produce new plants.
Asexual reproduction
Asexual reproduction allows for the formation of new individuals from a single parent without the fusion of egg and sperm. Offspring are genetically identical to the parent. Types of asexual reproduction include binary fission, budding, vegetative propagation, fragmentation and regeneration, and parthenogenesis. Vegetative propagation involves plant structures like stems, leaves, roots, and tubers developing into new individuals. Fragmentation allows parts of organisms like planaria and lizards to regenerate into whole new individuals.
Cbse grade 7 chapter 11 reproduction in plants
1. Plants reproduce both sexually through the fusion of male and female gametes to form seeds, and asexually through vegetative propagation, budding, and spore formation involving a single parent.
2. Sexual reproduction involves pollination of flowers transferring pollen, fertilization fusing the gametes, and fruit and seed formation housing the embryo.
3. Asexual reproduction methods include vegetative propagation using plant parts like stems, roots, and leaves, as well as budding and spore formation which create clones of the parent plant.
Seed germination process
Seeds soak up water which causes the seed coat to split, allowing the embryo root to grow and get water while the embryo stem grows out and leaves form on the stem, enabling photosynthesis and the formation of flowers.
Bio 100 Chapter 24
The document outlines the life cycle and reproductive processes in flowering plants. It describes the alternation of generations between diploid sporophytes and haploid gametophytes. The sporophyte produces spores via meiosis and the gametophyte generates gametes. Fertilization occurs when sperm fertilizes an egg, forming a zygote that develops into a seed containing an embryo. The ovary becomes a fruit, dispersing seeds that can germinate to form new sporophytes, completing the cycle. Flowers are adaptations that produce and protect gametophytes and attract pollinators like insects and birds to facilitate fertilization.
Asexual reproduction
Asexual reproduction involves only one parent and does not involve meiosis, gamete formation, fertilization, or parthenogenesis. It is common in plants, algae, fungi, and unicellular organisms. Examples of asexual reproduction in unicellular organisms include binary fission, sporulation, budding, gemmule formation, and fragmentation. Binary fission involves a parent cell dividing into two identical daughter cells through mitosis. Sporulation produces dormant spore forms through various types of spores. Budding occurs when a small projection called a bud forms on the parent body and detaches to form a new individual.
Methods of reproduction file ppt
Asexual reproduction allows organisms to reproduce without sex, creating offspring that are genetically identical to the parent. There are several methods of asexual reproduction, including binary fission in single-celled organisms, budding seen in hydra and plants, fragmentation where a parent breaks into pieces that grow into new individuals, and parthenogenesis in some invertebrates and plants where females can produce offspring without fertilization. While asexual reproduction is efficient and produces offspring adapted to the parent's environment, it does not allow for genetic variation and evolution of the species to changing environments.
Reproduction
This document discusses reproduction in various forms of life. It describes asexual reproduction, which does not involve sex cells and occurs through mechanisms like budding, fragmentation, and regeneration. It produces offspring that are genetically identical to the parent. Sexual reproduction involves the union of egg and sperm to produce offspring with genetic variation. It summarizes the process of sexual reproduction in flowering plants, including gamete formation, pollination, double fertilization, fruit/seed development, and seed germination.
Plants2 plant parts seeds: germination, cotyledons, tropisms, includes labs, ...
Seeds contain stored energy to help young plants grow. They reproduce plants and can travel via wind, water, or animals. Seeds have three main parts - a seed coat, cotyledons which provide food, and a small embryo plant. Monocots have one cotyledon while dicots have two. Germination involves water soaking the seed coat, the coat splitting, and the root and shoot emerging to become a new plant using energy from the cotyledons.
Types of-asexual-reproduction
Types of asexual reproduction include binary fission, spore formation, and tuber formation. Binary fission involves a parent cell dividing into two equal daughter cells that are genetically identical to the parent. Spore formation occurs when fungal hyphae grow vertically and produce spores that are released. Tuber formation takes place as underground stems of certain plants like potatoes swell into storage organs called tubers.
Asexual reproduction
Four main methods of asexual reproduction are described: binary fission, spore formation, budding, and vegetative propagation. Vegetative propagation can occur naturally through bulbs, runners, and tubers, or artificially through methods like tissue culture and cuttings. Tissue culture, also called micropropagation, involves growing small plant parts in sterile conditions and produces clones. Advantages of vegetative propagation include certainty of reproduction without pollination or seeds, no dormancy period required, and identical clones transferring desired traits.
Lesson 4 germination and seed dispersal
The kids are going to learn about the stages of germination of a sweet corn plant. They will learn about the type of seed dispersal.
Form 3 PMR Science Chapter 4 Plant Reproduction
Plant reproduction can occur through sexual or asexual means. Sexual reproduction involves flowers and production of seeds, while asexual reproduction is vegetative and involves propagation through stems, leaves, or underground structures. The life cycle of flowering plants includes germination of seeds into seedlings, growth and maturation of plants, flowering, pollination and fertilization to produce seeds which then disperse and the cycle continues. Fruits aid in seed dispersal through various adaptations for wind, animal, or explosive dispersal. Genetically modified crops aim to introduce traits like pest resistance, disease resistance, drought tolerance, and increased nutrients, in order to address issues around food security. However, GM crops also face opposition around safety and environmental concerns.
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This document discusses and compares sexual and asexual reproduction. It describes the main types of asexual reproduction, which include binary fission, budding, spore formation, vegetative reproduction, and rejuvenation. These methods allow organisms to rapidly increase numbers with genetically identical offspring. The document then explains sexual reproduction, which involves the fusion of male and female gametes during internal or external fertilization to produce offspring with genetic variation. Key differences between sexual and asexual reproduction are also outlined.
Plant reproduction with qn
This document discusses plant reproduction through flowering plants and non-flowering plants. It describes that flowering plants reproduce through seeds which form after pollination and fertilization of flowers. The male parts of flowers produce pollen which fertilizes the female parts, leading to seed and fruit formation. Seeds later germinate into seedlings and grow into adult plants. Non-flowering plants reproduce through spores, underground stems, suckers or leaf buds. The full life cycle from seed to adult plant is depicted in a diagram.
The Cell Cycle
The document discusses the cell cycle and reproduction. It describes the main stages of the cell cycle - interphase consisting of G1, S, and G2 phases and mitosis consisting of prophase, metaphase, anaphase, and telophase. It also discusses meiosis and how it produces gametes through two cell divisions rather than one, resulting in halved chromosome number and genetic variation important for sexual reproduction. Sexual reproduction involves the fusion of male and female gametes during processes like internal and external fertilization.
POLLINATION
Pollination, transfer of pollen grains from the stamens, the flower parts that produce them, to the ovule-bearing organs or to the ovules (seed precursors) themselves. In plants such as conifers and cycads, in which the ovules are exposed, the pollen is simply caught in a drop of fluid secreted by the ovule. In flowering plants, however, the ovules are contained within a hollow organ called the pistil, and the pollen is deposited on the pistil’s receptive surface, the stigma. There the pollen germinates and gives rise to a pollen tube, which grows down through the pistil toward one of the ovules in its base. In an act of double fertilization, one of the two sperm cells within the pollen tube fuses with the egg cell of the ovule, making possible the development of an embryo, and the other cell combines with the two subsidiary sexual nuclei of the ovule, which initiates formation of a reserve food tissue, the endosperm. The growing ovule then transforms itself into a seed.
Growing plants
The document summarizes key concepts about the world of plants including plant reproduction, pollination, fertilization, seed dispersal, and asexual reproduction. It discusses the life cycle and structure of plants and flowers. It also covers commercial plant propagation techniques like cuttings and grafting which allow for consistent production of desired plant varieties.
SCIENCE - Reproduction in plants (CLASS VII - CBSE BOARD)
SCIENCE
Reproduction in plants
(CLASS VII)
CBSE BOARD
Types of reroduction in plants
tpes of asexual reproduction in plant
Vegetative propagation
Budding
Fragmentation
Spore formation
Sexual reproduction in plants
Parts of flower
Seed structure
A seed is a small embryonic plant enclosed in a protective seed coat that contains stored food. Seeds allow plants to maintain dormancy until conditions are suitable, protect the vulnerable young plant, provide food until photosynthesis is possible, and aid in plant dispersal. The main structures of a seed include the seed coat, hilum, embryo containing cotyledon, epicotyl/hypocotyl, plumule, and radicle. The seed coat protects the embryo while the cotyledon stores food and the epicotyl/hypocotyl and radicle form the basis of the stem and root.
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Asexual reproduction
Asexual reproduction produces genetically identical offspring through processes such as binary fission, budding, spore formation, regeneration, and vegetative propagation. Binary fission involves a parent cell dividing into two equal daughter cells, while budding results in a parent organism dividing into an unequal parent and new bud. Spore formation produces single cells that can germinate into new individuals. Regeneration allows some animals like hydra and planaria to regrow lost body parts. Vegetative propagation uses plant parts like bulbs, tubers, stolons and rhizomes to produce new plants.
Asexual reproduction
Asexual reproduction allows for the formation of new individuals from a single parent without the fusion of egg and sperm. Offspring are genetically identical to the parent. Types of asexual reproduction include binary fission, budding, vegetative propagation, fragmentation and regeneration, and parthenogenesis. Vegetative propagation involves plant structures like stems, leaves, roots, and tubers developing into new individuals. Fragmentation allows parts of organisms like planaria and lizards to regenerate into whole new individuals.
Cbse grade 7 chapter 11 reproduction in plants
1. Plants reproduce both sexually through the fusion of male and female gametes to form seeds, and asexually through vegetative propagation, budding, and spore formation involving a single parent.
2. Sexual reproduction involves pollination of flowers transferring pollen, fertilization fusing the gametes, and fruit and seed formation housing the embryo.
3. Asexual reproduction methods include vegetative propagation using plant parts like stems, roots, and leaves, as well as budding and spore formation which create clones of the parent plant.
Seed germination process
Seeds soak up water which causes the seed coat to split, allowing the embryo root to grow and get water while the embryo stem grows out and leaves form on the stem, enabling photosynthesis and the formation of flowers.
Bio 100 Chapter 24
The document outlines the life cycle and reproductive processes in flowering plants. It describes the alternation of generations between diploid sporophytes and haploid gametophytes. The sporophyte produces spores via meiosis and the gametophyte generates gametes. Fertilization occurs when sperm fertilizes an egg, forming a zygote that develops into a seed containing an embryo. The ovary becomes a fruit, dispersing seeds that can germinate to form new sporophytes, completing the cycle. Flowers are adaptations that produce and protect gametophytes and attract pollinators like insects and birds to facilitate fertilization.
Asexual reproduction
Asexual reproduction involves only one parent and does not involve meiosis, gamete formation, fertilization, or parthenogenesis. It is common in plants, algae, fungi, and unicellular organisms. Examples of asexual reproduction in unicellular organisms include binary fission, sporulation, budding, gemmule formation, and fragmentation. Binary fission involves a parent cell dividing into two identical daughter cells through mitosis. Sporulation produces dormant spore forms through various types of spores. Budding occurs when a small projection called a bud forms on the parent body and detaches to form a new individual.
Methods of reproduction file ppt
Asexual reproduction allows organisms to reproduce without sex, creating offspring that are genetically identical to the parent. There are several methods of asexual reproduction, including binary fission in single-celled organisms, budding seen in hydra and plants, fragmentation where a parent breaks into pieces that grow into new individuals, and parthenogenesis in some invertebrates and plants where females can produce offspring without fertilization. While asexual reproduction is efficient and produces offspring adapted to the parent's environment, it does not allow for genetic variation and evolution of the species to changing environments.
Reproduction
This document discusses reproduction in various forms of life. It describes asexual reproduction, which does not involve sex cells and occurs through mechanisms like budding, fragmentation, and regeneration. It produces offspring that are genetically identical to the parent. Sexual reproduction involves the union of egg and sperm to produce offspring with genetic variation. It summarizes the process of sexual reproduction in flowering plants, including gamete formation, pollination, double fertilization, fruit/seed development, and seed germination.
Plants2 plant parts seeds: germination, cotyledons, tropisms, includes labs, ...
Seeds contain stored energy to help young plants grow. They reproduce plants and can travel via wind, water, or animals. Seeds have three main parts - a seed coat, cotyledons which provide food, and a small embryo plant. Monocots have one cotyledon while dicots have two. Germination involves water soaking the seed coat, the coat splitting, and the root and shoot emerging to become a new plant using energy from the cotyledons.
Types of-asexual-reproduction
Types of asexual reproduction include binary fission, spore formation, and tuber formation. Binary fission involves a parent cell dividing into two equal daughter cells that are genetically identical to the parent. Spore formation occurs when fungal hyphae grow vertically and produce spores that are released. Tuber formation takes place as underground stems of certain plants like potatoes swell into storage organs called tubers.
Asexual reproduction
Four main methods of asexual reproduction are described: binary fission, spore formation, budding, and vegetative propagation. Vegetative propagation can occur naturally through bulbs, runners, and tubers, or artificially through methods like tissue culture and cuttings. Tissue culture, also called micropropagation, involves growing small plant parts in sterile conditions and produces clones. Advantages of vegetative propagation include certainty of reproduction without pollination or seeds, no dormancy period required, and identical clones transferring desired traits.
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The kids are going to learn about the stages of germination of a sweet corn plant. They will learn about the type of seed dispersal.
Form 3 PMR Science Chapter 4 Plant Reproduction
Plant reproduction can occur through sexual or asexual means. Sexual reproduction involves flowers and production of seeds, while asexual reproduction is vegetative and involves propagation through stems, leaves, or underground structures. The life cycle of flowering plants includes germination of seeds into seedlings, growth and maturation of plants, flowering, pollination and fertilization to produce seeds which then disperse and the cycle continues. Fruits aid in seed dispersal through various adaptations for wind, animal, or explosive dispersal. Genetically modified crops aim to introduce traits like pest resistance, disease resistance, drought tolerance, and increased nutrients, in order to address issues around food security. However, GM crops also face opposition around safety and environmental concerns.
Lesson 4.1 Introduction of Reproduction
This document discusses and compares sexual and asexual reproduction. It describes the main types of asexual reproduction, which include binary fission, budding, spore formation, vegetative reproduction, and rejuvenation. These methods allow organisms to rapidly increase numbers with genetically identical offspring. The document then explains sexual reproduction, which involves the fusion of male and female gametes during internal or external fertilization to produce offspring with genetic variation. Key differences between sexual and asexual reproduction are also outlined.
Plant reproduction with qn
This document discusses plant reproduction through flowering plants and non-flowering plants. It describes that flowering plants reproduce through seeds which form after pollination and fertilization of flowers. The male parts of flowers produce pollen which fertilizes the female parts, leading to seed and fruit formation. Seeds later germinate into seedlings and grow into adult plants. Non-flowering plants reproduce through spores, underground stems, suckers or leaf buds. The full life cycle from seed to adult plant is depicted in a diagram.
The Cell Cycle
The document discusses the cell cycle and reproduction. It describes the main stages of the cell cycle - interphase consisting of G1, S, and G2 phases and mitosis consisting of prophase, metaphase, anaphase, and telophase. It also discusses meiosis and how it produces gametes through two cell divisions rather than one, resulting in halved chromosome number and genetic variation important for sexual reproduction. Sexual reproduction involves the fusion of male and female gametes during processes like internal and external fertilization.
POLLINATION
Pollination, transfer of pollen grains from the stamens, the flower parts that produce them, to the ovule-bearing organs or to the ovules (seed precursors) themselves. In plants such as conifers and cycads, in which the ovules are exposed, the pollen is simply caught in a drop of fluid secreted by the ovule. In flowering plants, however, the ovules are contained within a hollow organ called the pistil, and the pollen is deposited on the pistil’s receptive surface, the stigma. There the pollen germinates and gives rise to a pollen tube, which grows down through the pistil toward one of the ovules in its base. In an act of double fertilization, one of the two sperm cells within the pollen tube fuses with the egg cell of the ovule, making possible the development of an embryo, and the other cell combines with the two subsidiary sexual nuclei of the ovule, which initiates formation of a reserve food tissue, the endosperm. The growing ovule then transforms itself into a seed.
Growing plants
The document summarizes key concepts about the world of plants including plant reproduction, pollination, fertilization, seed dispersal, and asexual reproduction. It discusses the life cycle and structure of plants and flowers. It also covers commercial plant propagation techniques like cuttings and grafting which allow for consistent production of desired plant varieties.
SCIENCE - Reproduction in plants (CLASS VII - CBSE BOARD)
SCIENCE
Reproduction in plants
(CLASS VII)
CBSE BOARD
Types of reroduction in plants
tpes of asexual reproduction in plant
Vegetative propagation
Budding
Fragmentation
Spore formation
Sexual reproduction in plants
Parts of flower
Seed structure
A seed is a small embryonic plant enclosed in a protective seed coat that contains stored food. Seeds allow plants to maintain dormancy until conditions are suitable, protect the vulnerable young plant, provide food until photosynthesis is possible, and aid in plant dispersal. The main structures of a seed include the seed coat, hilum, embryo containing cotyledon, epicotyl/hypocotyl, plumule, and radicle. The seed coat protects the embryo while the cotyledon stores food and the epicotyl/hypocotyl and radicle form the basis of the stem and root.
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Plants2 plant parts seeds: germination, cotyledons, tropisms, includes labs, ...
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SCIENCE - Reproduction in plants (CLASS VII - CBSE BOARD)
SCIENCE - Reproduction in plants (CLASS VII - CBSE BOARD)
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Captain Cook was unable to penetrate the ice ring around Antarctica in 1773. Exploration increased in the early 19th century by sealers and whalers. In 1911, Roald Amundsen became the first person to reach the South Pole, beating Robert Scott's expedition after using dogs and eating them for food. Sir Ernest Shackleton's ship was trapped in ice in 1915. The Antarctic Treaty was established in 1959 to designate Antarctica as a scientific preserve and to ban military activity on the continent.
Countries sample
Brazil is located in South America and has a population that includes descendants of Portuguese, Native Americans, Africans, and Europeans. Its major cities include the capital Brasilia as well as São Paulo, Rio de Janeiro, and Belém. Brazil has a diverse geography that includes the Amazon River basin, coastline on the Atlantic Ocean, and ecosystems ranging from rainforests to grasslands. After being claimed by Portugal in 1500 and gaining independence in 1822, Brazil transitioned to a republic in 1889 and a period of military rule ended in 1985.
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- 1. Science Vocabulary Grade 3 Leila Woodson Wingo School
- 2. Life cycle • All of the stages in an organism’s life
- 3. Embryo • A young plant that is just beginning to grow.
- 4. Germinate • To begin to grow
- 5. Heredity- Passing characteristics from parent to offspring.
- 6. Color is a characteristic that is passed from the parent to offspring.
- 7. Flowering Plants Plants that produce seeds in flowers..
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- 9. Some conifers are • Pine trees • Spruce trees
- 10. Pollen Powdery material that is needed by eggs to make seeds.
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