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Pollengrain:- pollengrain are microscopic structures which bear androecium a male reproductive organ of a flower. Pollination:- Pollination is the act of transferring pollen grains from the male anther of a flower to the female stigma.

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What is pollination? features ,importance and location

Posted by Poorvi Yadav Poorvi Yadav 3 years, 5 months ago

CBSE > Class 12 > Biology

1 answers

Tanu Shree 3 years, 5 months ago

The transfer of pollen grain from anther to stigma of same plant species is called pollination.

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Ts of anther diagram

Posted by Aniket Jaiswal 3 years, 5 months ago

CBSE > Class 12 > Biology

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Earth worm

Posted by Ramesh Talapatti 3 years, 5 months ago

CBSE > Class 12 > Biology

1 answers

Itz. Ashraf 3 years, 5 months ago

Earth worm is Lizard.

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? Yrr 12th main tum logo ne kitna pdh liya? { neet doge ?

Posted by Shruti Kushwaha 3 years, 5 months ago

CBSE > Class 12 > Biology

5 answers

Tanisha Upadhayay 3 years, 3 months ago

Yess..

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Sheetal Punia 3 years, 4 months ago

Yes

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Suryansh Singh 3 years, 4 months ago

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Ravi Sundriyal 3 years, 5 months ago

Yess...

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Deva ?? 3 years, 5 months ago

Haa

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What is insulin

Posted by Shalini Singh 3 years, 5 months ago

CBSE > Class 12 > Biology

3 answers

Prashant Rathore 3 years, 5 months ago

Insulin is a pancreatic hormone which is relased by the beta cells of pancreas. And shows hypoglycemic activity.

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Riya Singh 3 years, 5 months ago

It is a hormone which is released by pancreas gland...it helps in controlling sugar level

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Dk Sharma 3 years, 5 months ago

It is a hormone release by the beta cell of the pituitary gland

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Are these offspring likely to be genetically identical of different ?

Posted by Priyanshi Sinha 3 years, 5 months ago

CBSE > Class 12 > Biology

2 answers

Samir Doshi 3 years, 5 months ago

Same

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Shoyab Khan 3 years, 5 months ago

As we know the term 'clone' is used for asexual reproduction which means morphologically and genetically identical so we can say these offsprings to be genetically identical to their parent cells.

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What are eukaryotic animals

Posted by Kushali.K.S Kushali.K.S 3 years, 5 months ago

CBSE > Class 12 > Biology

1 answers

Prashant Rathore 3 years, 5 months ago

Cells which has well developed nucleus are called eukaryotic cells and the animals composed of eukaryotic animals.

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how can we convert the seeds into apomicts.?

Posted by Vaibhav Pandey 3 years, 5 months ago

CBSE > Class 12 > Biology

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hybrid varieties of several of our food crops and vegetable crops are being extensively cultivated cultivation of hybrid have tremendously and increased productivity.

Posted by Vaibhav Pandey 3 years, 5 months ago

CBSE > Class 12 > Biology

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Mendal's law of inheritance

Posted by Mannat Hussain 3 years, 6 months ago

CBSE > Class 12 > Biology

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`Explain the process of pollination in (a) vallisneria (b) Zostera (marine grasses).How is it different in water lily or Hyacinth which are also aquatic plants? class 12

Posted by Vaibhav Pandey 3 years, 6 months ago

CBSE > Class 12 > Biology

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What is reproductive part of alge

Posted by Disha Singh 3 years, 6 months ago

CBSE > Class 12 > Biology

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Define differentiation . Sexual reproduction in flowering plants

Posted by Vaibhav Pandey 3 years, 6 months ago

CBSE > Class 12 > Biology

1 answers

Disha Singh 3 years, 6 months ago

Two type of reproduction in plan

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Hi guys how many marks you are getting in term 1 ?

Posted by Prachi Rawat 3 years, 6 months ago

CBSE > Class 12 > Biology

3 answers

Disha Singh 3 years, 6 months ago

348

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Atiqa Parveen 3 years, 6 months ago

356

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Ashmitha Biju 3 years, 6 months ago

185

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Briefly explain process of photosynthesis

Posted by Pulkit Kashyap 3 years, 6 months ago

CBSE > Class 12 > Biology

1 answers

Ifra Naaz 3 years, 6 months ago

hotosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

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Difference between binary fission and multiple fission.

Posted by Vanya Yadav 3 years, 6 months ago

CBSE > Class 12 > Biology

2 answers

Ifra Naaz 3 years, 6 months ago

Binary fission Multiple fission 2 daughter cells are formed from the splitting of the parent’s cell or Nucleus. Many daughter cells are formed from the splitting of the parent’s cell or Nucleus. Occurs during favourable conditions. Occurs during unfavourable conditions. Divides only once. Divides repeatedly. Both the Nucleus and cytoplasm divide simultaneously. First, the nucleus divides and is surrounded by cytoplasm. Includes a definite pattern of division. Has no definite pattern of division. Example: Amoeba, Bacteria, Euglena, etc., Example: Plasmodium, Sporozoans, Algae, etc

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Dk Sharma 3 years, 6 months ago

In binary fission, the cell divide in two daughter cell. In multiple fission,it divide in more than two daughter cell.

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Difference between sporulation and spore formation.

Posted by Vanya Yadav 3 years, 6 months ago

CBSE > Class 12 > Biology

1 answers

Anivesha Agrahari 3 years, 5 months ago

During unfavorable condition amoeba make three hard layer covering called cyst.amoeba undergo for multiple division and form many spore. This cyst get brust and released large number of spore called sporulation and formation of cyst called encystation

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Notes on megasporogenesis all points

Posted by Nakul Sawarn 3 years, 6 months ago

CBSE > Class 12 > Biology