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Post a LessonAnswered on 13/05/2020 Learn Reproduction in Organisms
Abhishek Chauhan
A teacher who redefines the way you understand concepts.
If organisms don't reproduce, new organisms will not be produced and because old organisms have to die (that's just how biology works, living cells. Thus the whole organism don't live forever), the entire species will disappear in one life-time of that organism.
Think it this way, along with the 4 billion years history of life evolution on earth there were many species which could not reproduce adequately. Because of that all of those species got eliminated. And that's why in today's world all organisms reproduce (effectively) because these are the survivor species, ancestors of today's organisms were the only one who figured out effective reproduction through the process of evolution.
read lessAnswered on 12/05/2020 Learn Reproduction in Organisms
Anita D.
Education is only a tool with of that u can gain every thing
Answered on 12/05/2020 Learn Reproduction in Organisms
Anita D.
Education is only a tool with of that u can gain every thing
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Answered on 12/05/2020 Learn Reproduction in Organisms
Anita D.
Education is only a tool with of that u can gain every thing
Answered on 12/05/2020 Learn Reproduction in Organisms
Anita D.
Education is only a tool with of that u can gain every thing
Answered on 18/06/2020 Learn Reproduction in Organisms
Deepika Agrawal
Interested to teach to class 1 to 5 , 6 to 10 , 11&12
In plants, the units of vegetative propagation such as runner, rhizome, sucker, tuber, offset, bulb are all capable of giving rise to new offsprings.
Examples of vegetative propagation:
(i) Vegetative propagation by leaves, in Bryophyllum
(ii) Vegetative propagation by the stem (rhizome) in Ginger, Turmeric etc.
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Answered on 13/05/2020 Learn Reproduction in Organisms
Narendrakumar Vishwakarma
Physics and Mathematics Expert with more than 8 Years of Experience
Answered on 13/05/2020 Learn Reproduction in Organisms
Anita D.
Education is only a tool with of that u can gain every thing
(a) Juvenile phase:- It is the period of growth in an individual organism after its birth and before it reaches reproductive maturity
(b) Reproductive stage:- It is the period when a single organism reproduces sexually
(c) Senescent stage:- It is the period when an organism grows old and loses the ability to reproduce.
read lessAnswered on 28/07/2020 Learn Reproduction in Organisms
Shobana S.
Personalized coaching for MATHS, SCIENCE,HINDI subjects.
The type of fertilisation in which male and female gamete takes place outside the body of the female is called external fertilisation. It is commonly observed in aquatic animals like starfish, frog and fish. Disadvantages are most of the male and female gametes will go wasted, i.e. it will remain unfertilised. External surroundings may cause harm to the gametes, which is present outside.
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Answered on 28/07/2020 Learn Reproduction in Organisms
Shobana S.
Personalized coaching for MATHS, SCIENCE,HINDI subjects.
The animals which give birth to the young ones are called viviparous animals. The animals which lay eggs are called oviparous animals. The eggs of few animals are easy to observe since they lay outside their bodies. So there is a higher risk of the eggs being eaten by their enemies, or it may fall from their nest. Thus, offspring of oviparous animals are at a higher risk as compared to the offspring of viviparous animals.
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