Flowering plants have evolved various adaptations for seed dispersal to spread seeds far from the parent plant. The main methods of seed dispersal are by wind, by animals, by water, and by explosion. Seeds dispersed by wind are light with structures like hairs that aid wind transport. Seeds dispersed by animals pass through digestive tracts unharmed and are deposited far from the parent in feces. Seeds dispersed by water may survive ocean currents, while explosive plant pods forcibly eject seeds from the parent.
Germination is the growth of a plant contained within a seed; it results in the formation of the seedling, it is also the process of reactivation of metabolic machinery of the seed resulting in the emergence of radical and plumule.
All fully developed seeds contain an embryo and in most plant species some store of food reserves, wrapped in a seed coat. Some plants produce varying numbers of seeds that lack embryos; these are called empty seeds and never germinate. Dormant seeds are ripe seeds that do not germinate because they are subject to external environmental conditions that prevent the initiation of metabolic processes and cell growth. Under proper conditions, the seed begins to germinate and the embryonic tissues resume growth, developing towards a seedling
Parts of a Flower
Sepals
Petals
Receptacle
Pistil
Stamen
Stamen
The stamen (plural stamina or stamens) is the pollen-producing reproductive organ of a flower.
Filament- Supports the Anther
Anther- Produces Pollen Grains
Pistil
The ovule producing part of a flower.
The ovary often supports a long style, topped by a stigma. The mature ovary is a fruit, and the mature ovule is a seed. Stigma: The part of the pistil where pollen germinates.
Peduncle
The stalk of a flower.
Types of Flowers
Complete Flowers- have both male and female parts
Incomplete Flowers- have either male or female parts but not both.
Pollination
is the act of transferring pollen grains from the male anther of a flower to the female stigma. The goal of every living organism, including plants, is to create offspring for the next generation. One of the ways that plants can produce offspring is by making seeds.
How Are Plants Pollinated?
Bees
Birds
Wind
Humans
Animals
How Are Flowers Useful to Us?
Flowers are not just beautiful to look at,
but they also serve a vital role in our ecosystem.
Flowers help our ecosystem flourish and attract a plethora of life to the area and facilitate the expansion of our environment. If flowers are cut down or destroyed before pollination can occur, that particular species has a high chance of dying off in that area. In addition, local wildlife will also vanish in that area since they would have no food. Flowers help keep the ecosystem growing and provide new plant life, as well as help sustain local insects and birds.
References
https://www.google.com/search?q=the+warmth+of+the+sun&biw=1366&bih=624&source=lnms&tbm=isch&sa=X&ved=0ahUKEwijzIvum-vNAhVGE5QKHVPECrQQ_AUICCgD#tbm=isch&q=flower&imgdii=FzbkxijP3tcE6M%3A%3BFzbkxijP3tcE6M%3A%3B9HeLL-NVdsjrxM%3A&imgrc=FzbkxijP3tcE6M%3A
https://www.google.com/search?q=plants+need+to+grow&biw=1366&bih=624&source=lnms&tbm=isch&sa=X&sqi=2&ved=0ahUKEwiJtPjrnOvNAhXCj5QKHcPEAP0Q_AUIBigB#tbm=isch&q=parts+of+flower+for+kindergarten&imgrc=e6V8oQskJakoiM%3A
https://www.google.com/imgres?imgurl=http%3A%2F%2Fwww.biotik.org%2Flaos%2Fdefs%2FStamen_en.gif&imgrefurl=http%3A%2F%2Fwww.biotik.org%2Flaos%2Fdefs%2F354_en.html&docid=Ds4mwro4x7NUhM&tbnid=QKkshukLyPxM2M%3A&w=455&h=283&noj=1&ved=0ahUKEwiDpou4pOvNAhWGKJQKHR2ZD3kQMwg6KAcwBw&iact=mrc&uact=8&biw=1366&bih=624#h=283&imgdii=QKkshukLyPxM2M%3A%3BQKkshukLyPxM2M%3A%3Bsk-2e39y3k6kCM%3A&w=455
https://www.google.com/search?q=stamen&biw=1366&bih=624&noj=1&source=lnms&sa=X&ved=0ahUKEwiDpou4pOvNAhWGKJQKHR2ZD3kQ_AUIBygA&dpr=1
Germination is the growth of a plant contained within a seed; it results in the formation of the seedling, it is also the process of reactivation of metabolic machinery of the seed resulting in the emergence of radical and plumule.
All fully developed seeds contain an embryo and in most plant species some store of food reserves, wrapped in a seed coat. Some plants produce varying numbers of seeds that lack embryos; these are called empty seeds and never germinate. Dormant seeds are ripe seeds that do not germinate because they are subject to external environmental conditions that prevent the initiation of metabolic processes and cell growth. Under proper conditions, the seed begins to germinate and the embryonic tissues resume growth, developing towards a seedling
Parts of a Flower
Sepals
Petals
Receptacle
Pistil
Stamen
Stamen
The stamen (plural stamina or stamens) is the pollen-producing reproductive organ of a flower.
Filament- Supports the Anther
Anther- Produces Pollen Grains
Pistil
The ovule producing part of a flower.
The ovary often supports a long style, topped by a stigma. The mature ovary is a fruit, and the mature ovule is a seed. Stigma: The part of the pistil where pollen germinates.
Peduncle
The stalk of a flower.
Types of Flowers
Complete Flowers- have both male and female parts
Incomplete Flowers- have either male or female parts but not both.
Pollination
is the act of transferring pollen grains from the male anther of a flower to the female stigma. The goal of every living organism, including plants, is to create offspring for the next generation. One of the ways that plants can produce offspring is by making seeds.
How Are Plants Pollinated?
Bees
Birds
Wind
Humans
Animals
How Are Flowers Useful to Us?
Flowers are not just beautiful to look at,
but they also serve a vital role in our ecosystem.
Flowers help our ecosystem flourish and attract a plethora of life to the area and facilitate the expansion of our environment. If flowers are cut down or destroyed before pollination can occur, that particular species has a high chance of dying off in that area. In addition, local wildlife will also vanish in that area since they would have no food. Flowers help keep the ecosystem growing and provide new plant life, as well as help sustain local insects and birds.
References
https://www.google.com/search?q=the+warmth+of+the+sun&biw=1366&bih=624&source=lnms&tbm=isch&sa=X&ved=0ahUKEwijzIvum-vNAhVGE5QKHVPECrQQ_AUICCgD#tbm=isch&q=flower&imgdii=FzbkxijP3tcE6M%3A%3BFzbkxijP3tcE6M%3A%3B9HeLL-NVdsjrxM%3A&imgrc=FzbkxijP3tcE6M%3A
https://www.google.com/search?q=plants+need+to+grow&biw=1366&bih=624&source=lnms&tbm=isch&sa=X&sqi=2&ved=0ahUKEwiJtPjrnOvNAhXCj5QKHcPEAP0Q_AUIBigB#tbm=isch&q=parts+of+flower+for+kindergarten&imgrc=e6V8oQskJakoiM%3A
https://www.google.com/imgres?imgurl=http%3A%2F%2Fwww.biotik.org%2Flaos%2Fdefs%2FStamen_en.gif&imgrefurl=http%3A%2F%2Fwww.biotik.org%2Flaos%2Fdefs%2F354_en.html&docid=Ds4mwro4x7NUhM&tbnid=QKkshukLyPxM2M%3A&w=455&h=283&noj=1&ved=0ahUKEwiDpou4pOvNAhWGKJQKHR2ZD3kQMwg6KAcwBw&iact=mrc&uact=8&biw=1366&bih=624#h=283&imgdii=QKkshukLyPxM2M%3A%3BQKkshukLyPxM2M%3A%3Bsk-2e39y3k6kCM%3A&w=455
https://www.google.com/search?q=stamen&biw=1366&bih=624&noj=1&source=lnms&sa=X&ved=0ahUKEwiDpou4pOvNAhWGKJQKHR2ZD3kQ_AUIBygA&dpr=1
Chapter - 7, Conservation of Plants and Animals, Science, Class 8Shivam Parmar
I have expertise in making educational and other PPTs. Email me for more PPTs at a very reasonable price that perfectly fits in your budget.
Email: parmarshivam105@gmail.com
Chapter - 7, Conservation of Plants and Animals, Science, Class 8
DEFORESTATION
CAUSES OF DEFORESTATION
CONSEQUENCES OF DEFORESTATION
GLOBAL WARMING
DESERTIFICATION
CONSERVATION OF FOREST AND WILDLIFE
BIOSPHERE RESERVE
FLORA AND FAUNA
ENDEMIC SPECIES
WILDLIFE SANCTUARY
NATIONAL PARK
ENDANGERED SPECIES
ECOSYSTEM
RED DATA BOOK
MIGRATION
RECYCLING OF PAPER
REFORESTATION
Every topic of this chapter is well written concisely and visuals will help you in understanding and imagining the practicality of all the topics.
By Shivam Parmar (Entrepreneur)
The multidisciplinary nature of environmental studies and natural resources Maitry Agrawal
The multidisciplinary nature of environmental studies and natural resources presentation will help you in knowing the actual meaning of environmental studies and it's scope and importance in layman's language. we will be also discussing about natural resources, types, individual's role in conservation of natural resources and sustainability.
Scope and Importance
•
Need for Public Awareness
• Depleting Nature of Environmental resources such as Soil, Water, Minerals,
and Forests.
• Global Environmental Crisis related to Population, Water, Sanitation and Land.
• Ecosystem: Concept, Classification, Structure of Ecosystem, overview of Food
chain, Food web and Ecological Pyramid
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
How to Create Map Views in the Odoo 17 ERPCeline George
The map views are useful for providing a geographical representation of data. They allow users to visualize and analyze the data in a more intuitive manner.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
2. Flowering plants have different
adaptations to enable their seeds
to be dispersed as far away as
possible.
The different methods of seed
dispersal are…
by wind
by animals
by water
by explosion
Reproduction in plants — getting the seeds dispersed
Seed Dispersal
3. by Explosion
At a glance…
by wind
seed dispersal
by water
Adaptations for reproduction
plants
by animals
4. Dispersal by Wind
• Some seeds are carried to a new
place by the wind. These seeds are
very light.
• The seeds of the orchid are almost
as fine as dust.
• Many have hairy growths which act
like little parachutes and carry the
seeds far away from the parent
plant.
• The seeds of the dandelion are
carried by the wind.
dandelion
Orchid
5. Dispersal by Water
• Water lily and the coconut palm are
carried by water.
• Coconuts can travel for thousands of
kilometres across seas and oceans.
• The original coconut palms on South
Sea islands grew from fruits which
were carried there from the mainland
by ocean currents.
6. Dispersal by Animals
• The animal eats the fruit but only the juicy
part is digested.
• The stones and pips pass through the
animal's digestive system and are excreted
to form new plants. This can be far away
from the parent plant.
• Blackberry, cherry and apple seeds are
dispersed in this way.
• Birds also like to eat fruit and they help to
disperse seeds to other areas through their
droppings.
• Squirrels collect nuts like acorns and bury
them for winter food, but they often forget
where they have buried them and these
grow into new trees.
• Some fruits like that of the burdock plant
have seeds with hooks.
• These catch on the fur of animals and are
carried away.
7. Dispersal by Explosion
• Some plants have pods that
explode when ripe and shoot
out the seeds.
• Lupins, gorse and broom
scatter their seeds in this
way.
• Pea and bean plants also
keep their seeds in a pod.
When the seeds are ripe
and the pod has dried, the
pod bursts open and the
peas and beans are
scattered.
8. Natural Resources
• Natural resources : Natural resources are the resources available in
a nature like air, water, sunlight, soil, minerals, forests, wild life etc.
• Natural resources are of two main types.
– renewable
• Renewable natural resources :- are the resources which can be replenished in a short period of time
like air, water, sunlight, forests etc.
– non renewable natural resources
• ii) Non renewable natural resources :- are the resources which cannot be replenished in a short period
of time like minerals (coal, petroleum, natural gas, metals etc.) because they take millions of years to
be formed.
• Human activities produce a lot of waste materials which are thrown
away into the environment. These wastes cause pollution of natural
resources like air, water and soil.
• There are mainly four types of pollution
– Air Pollution
– Water Pollution
– Land Pollution
– Noise Pollution
10. The Three R’s to save the
environment
• The three R’s to save the environment are
Reduce, Recycle and Reuse.
– Reduce :- means using less of natural resources and
avoiding wastage of natural resources.
– Recycle :- means the materials like paper, plastic,
glass, metals etc. used for making things can again
be used for making new things instead of
synthesizing or extracting new paper, plastic, glass or
metals.
– Reuse :- means using things again and again like the
plastic bottles in which we buy jams, pickles etc can
be again used for storing things in the kitchen.
11. Conservation of forests
• Forests can be conserved by
• Afforestation – planting of more
trees
• Preventing or reducing
deforestation
• By setting up wildlife sanctuaries,
national parks, biosphere reserves
etc.
• Undertaking social forestry
programs like Van Mahotsav,
Chipko movement for planting and
protecting trees on a large scale.
12. Conservation of wildlife
• Preserving the natural habitats of animals
• Banning poaching of animals
• Protecting endangered species of animals.
• Setting up of wildlife sanctuaries, national parks,
biosphere reserves etc.
13. Conservation of Water
• Water is a basic necessity for all living things. We use water for our
daily needs, for agriculture, transportation, construction of buildings,
roads, dams etc.
• Water is a natural habitat for aquatic organisms. Human activities
are affecting the availability of water and causing pollution of water
bodies.
• Dams : Advantages of dams :- i) Irrigation of crops. ii) Producing
electricity. iii) Supplying water to towns and cities. iv) To control
floods. Disadvantages of dams:- i) Social problems :- It displaces a
large number of people who have to be rehabilitated. ii) Economic
problems :- It is expensive and uses a huge amount of public
money. iii) Environmental problems :- It causes deforestation and
loss of biodiversity.