LIEW MI MIE (D20112053979)
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The document discusses different types of reproduction in animals. It provides examples of single and multiple offspring reproduction in species such as humans, dogs, whales, cats, elephants, and giraffes. Examples are also given of animals that lay small or large numbers of eggs, such as chickens, lizards, ducks, mosquitoes, turtles, frogs, fish, and birds. The document further discusses whether certain egg-laying animals take care of their eggs or not, and defines incomplete versus complete metamorphosis in animal life cycles.
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Studies on development of Lymnaea acuminata with respect to age - length r...
The breeding and complete development of fresh water snail,
Lymnaea acuminata,
was observed. The development completed in eleven days. All
the external features were observed from third day. During third day heart beats
started and the rudiments of larval kidney appeared. All these organs show
differentiation and increase in size with embryo. The shell development starts from
third day onwards. Hatching of egg took place on 11
th
day by mechanical means. The
young ones were having all system like adult except gonad. Age
-
length relationship
was established. It was found that it showed perfect positive relationship between
age and total length of embryo. Kn value also supports the above observations.
The r = 0.98, Kn = 0.98 and regression equation y = 31.49 + 23.08 x.
Studies on development of Lymnaea acuminata with respect to age length relati...
Studies on development of Lymnaea acuminata with respect to age length relati...researchanimalsciences
The breeding and complete development of fresh water snail, Lymnaea acuminata, was observed. The development completed in eleven days. All the external features were observed from third day. During third day heart beats started and the rudiments of larval kidney appeared. All these organs show differentiation and increase in size with embryo. The shell development starts from third day onwards. Hatching of egg took place on 11th day by mechanical means. The young ones were having all system like adult except gonad. Age-length relationship was established. It was found that it showed perfect positive relationship between age and total length of embryo. Kn value also supports the above observations. The r = 0.98, Kn = 0.98 and regression equation
y = 31.49 + 23.08 x.
Article Citation:
Borale RP and Ahirrao KD.
Studies on development of Lymnaea acuminata with respect to age-length relationship and relative condition factor (Kn)
Journal of Research in Animal Sciences (2013) 1(2): 055-059.
Full Text:
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This document discusses and compares sexual and asexual reproduction. Sexual reproduction involves the combining of male and female sex cells through fertilization, producing offspring that are genetically diverse from the parents. Asexual reproduction does not involve fertilization and the offspring are identical clones of the parent. Some advantages of sexual reproduction are that it produces genetic diversity and offspring better able to survive in different environments. Some advantages of asexual reproduction are that it is a simple, quick process that can produce many offspring with little effort. The document then provides examples of different sexual and asexual reproduction methods used by plants, animals, and other organisms.
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The document discusses the life cycles of humans, animals, and flowering plants. It provides examples of life cycles such as butterflies, mosquitoes, frogs, cats, and flowering plants. For humans, it outlines the stages of foetus, baby, childhood, adolescence, adulthood, and old age. It also explains the reproductive parts of flowers and processes of pollination, fertilization, seed production, dispersal, and germination that are common to many plant life cycles.
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The document discusses the life cycles of several insects:
- The grasshopper's life cycle has 3 stages - egg, nymph, and adult. The nymph hatches from the egg and grows wings as an adult over 4-7 weeks.
- The mosquito's life cycle has 4 stages - egg, larva, pupa, and adult. The larva hatches and grows in water before becoming a pupa then adult.
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This slideshow was created as a seventh-grade example of what a student might accomplish to give a presentation to the class or group of kids about sexual and asexual reproduction.
Darwinian fitness(animal behaviour)
i) Darwinian fitness focuses on an individual's capacity to produce offspring and looks at the probability that an animal will leave descendants after a given time period.
ii) Individual fitness depends on survival to reproductive age, mating success, fecundity, and offspring survival probability.
iii) Survival value of a trait within a population depends on how much the trait contributes to reproductive success.
Studies on development of Lymnaea acuminata with respect to age - length r...
The breeding and complete development of fresh water snail,
Lymnaea acuminata,
was observed. The development completed in eleven days. All
the external features were observed from third day. During third day heart beats
started and the rudiments of larval kidney appeared. All these organs show
differentiation and increase in size with embryo. The shell development starts from
third day onwards. Hatching of egg took place on 11
th
day by mechanical means. The
young ones were having all system like adult except gonad. Age
-
length relationship
was established. It was found that it showed perfect positive relationship between
age and total length of embryo. Kn value also supports the above observations.
The r = 0.98, Kn = 0.98 and regression equation y = 31.49 + 23.08 x.
Studies on development of Lymnaea acuminata with respect to age length relati...
Studies on development of Lymnaea acuminata with respect to age length relati...researchanimalsciences
The breeding and complete development of fresh water snail, Lymnaea acuminata, was observed. The development completed in eleven days. All the external features were observed from third day. During third day heart beats started and the rudiments of larval kidney appeared. All these organs show differentiation and increase in size with embryo. The shell development starts from third day onwards. Hatching of egg took place on 11th day by mechanical means. The young ones were having all system like adult except gonad. Age-length relationship was established. It was found that it showed perfect positive relationship between age and total length of embryo. Kn value also supports the above observations. The r = 0.98, Kn = 0.98 and regression equation
y = 31.49 + 23.08 x.
Article Citation:
Borale RP and Ahirrao KD.
Studies on development of Lymnaea acuminata with respect to age-length relationship and relative condition factor (Kn)
Journal of Research in Animal Sciences (2013) 1(2): 055-059.
Full Text:
http://janimalsciences.com/documents/AS0009.pdfLuna moth life cycle
The Luna Moth has a distinct life cycle that includes four stages: egg, larva/caterpillar, cocoon/pupa, and adult moth. As a larva/caterpillar, it sheds its skin five times before entering the cocoon/pupa stage, which lasts around two weeks. Finally, it emerges as an adult Luna Moth, which lives for only seven days to mate before dying, as it does not eat or drink during this final stage.
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This document describes different types of asexual reproduction and cloning. It outlines 5 types of asexual reproduction including binary fission, budding, fragmentation, vegetative reproduction, and spore formation. The advantages and disadvantages of asexual reproduction are provided. The document also describes the processes of reproductive cloning and therapeutic cloning. Reproductive cloning aims to create an identical genetic copy of an organism, while therapeutic cloning uses stem cells to generate tissues and organs for transplantation.
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Learn about life cycle of animal.You can even know the information about it.My name is Krethaloshanan Vinnan Rao.Add me as friend in Facebook Vinnan Rao.I have 2 account.Add both.My ps3 name is Vinnan
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The document discusses different types of reproduction in organisms. It describes asexual reproduction as involving only one parent and producing offspring that are genetically identical. Examples mentioned include budding, spore formation, and fragmentation. Sexual reproduction is defined as involving two parents and producing offspring with a genetic mix of both parents using specialized sex cells. The advantages and disadvantages of asexual and sexual reproduction are also compared. Asexual reproduction allows for quick reproduction without a mate but lacks genetic variation, while sexual reproduction provides variation but requires participation of both sexes.
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Human reproduction involves the fusion of both sperm and egg through a process called fertilization. It is a type of sexual reproduction that requires two parents and produces offspring that are not identical to the parents. Sexual reproduction first involves the production of sex cells, such as sperm and eggs, by the parents which then fuse during fertilization to create a new organism, unlike asexual reproduction which requires only one parent and produces offspring identical to that parent.
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Studies on development of Lymnaea acuminata with respect to age - length r...
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Studies on development of Lymnaea acuminata with respect to age length relati...
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Reproduction can occur through asexual or sexual means. Asexual reproduction involves a single parent and produces offspring that are genetically identical. Sexual reproduction involves two parents and produces offspring with genetic variation. The document then describes the key stages and processes of both asexual reproduction (such as binary fission and budding) and sexual reproduction (including gamete formation, fertilization, and embryo development) in organisms ranging from plants and fungi to animals. Examples are provided to illustrate different modes of asexual and sexual reproduction.
Mammals
Mammals are named after their mammary glands, which produce milk to feed their young. They are classified into three main groups: monotremes, which lay eggs; marsupials, which carry their young in pouches; and placentals, which carry young in the womb. Placental mammals are further divided into 11 orders based on characteristics like diet, habitat, locomotion and teeth. Some key orders include insectivores, bats, rodents, rabbits, armadillos, whales, dugongs, elephants, carnivores like dogs, hoofed animals, and primates.
Manshi 8th a science reproduction in animals
The document discusses various topics related to sexual and asexual reproduction including male and female reproductive organs, fertilization, internal and external fertilization, zygote formation, embryo and fetus development, test-tube babies, frog reproduction and metamorphosis, and examples of asexual reproduction such as binary fission, budding, and cloning through the example of Dolly the sheep. It provides detailed information on human and frog reproductive systems and processes.
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The document discusses various topics related to sexual and asexual reproduction including male and female reproductive organs, fertilization, internal and external fertilization, zygote formation, embryo and fetus development, test-tube babies, frog reproduction and metamorphosis, and examples of asexual reproduction such as binary fission, budding, and cloning through the example of Dolly the sheep. It provides detailed information on human and frog reproductive systems and processes.
Reproductive strategies (bd)
Reproductive strategies involve adaptations that improve chances of fertilization or offspring survival. There are two main types: asexual reproduction requiring one parent produces clones, while sexual reproduction between two parents creates genetic variation. Asexual reproduction is simple but limits variation, while sexual reproduction requires more energy but allows adaptation to changing environments.
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- 7. Examples Of Examples Of Single Young Multiple Young Reproduction Reproduction Human Dog Whale Cat Elephant Sheep Giraffe Horse
- 10. Examples Of Small Examples Of Large Number Of Eggs Number Of Eggs Reproduction Reproduction Chicken Turtle Lizard Frog Duck Mosquito Bird Fish
- 11. Example Of Eggs Reproduction Animals Example Of Eggs Reproduction Animals Which Take Care Of Their Eggs Which Do Not Take Care Of Their Eggs
- 13. The change in the life cycle in some animals is only slight, so that the young animal still looks like the adult, this is call incomplete change or incomplete metamorphosis
- 15. Do Not Take Care Take Care Animals Give Birth Lay Eggs Of Their Of Their Young Young Dog Cow Mosquito Owl Elephant Snake
- 17. 1. Smaldino,S. Lowther, D & Russell, J.(2011). Instructional technology and media for learning, Boston : Allyn.& Bacon 2. Weixei, S.et al. (2011) Multimedia basics. Boston : Thompson Course Technology 3. Abd. Samad Hanif, Norhasbiah Ubaidillah, Ramlah Mailok, Norhaziah Md. Salleh & Khairulanuar Samsuddin. (2005). Tehnology Komputer UPSI : Tanjong Malim 4. http://www.kidzone.ws/animals.htm 5. http://www.thebutterflysite_cycle.shtml 6. http://wiki.animals.com/Q/what.animals_undergo_com QUIT? Yes No