Tiwari Academy Discussion

Asked: October 15, 2021In: Class 12 Biology

Is it true that if the dissolved oxygen level drops to zero the water will become septic. Give an example which could lower the dissolved oxygen content of an aquatic body.

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Shikha Avasti

Asked: October 15, 2021In: Class 12 Biology

Is it true that there is more solar energy available in the tropics? Explain briefly.

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Gopal Das

Asked: October 14, 2021In: Class 12 Biology

Primary productivity varies from ecosystem to ecosystem. Explain?

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Bal Kishna

Asked: October 14, 2021In: Class 12 Biology

The number of trophic levels in an ecosystem are limited. Comment.

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Roby Joon

Asked: October 14, 2021In: Class 12 Biology

What is a tree line?

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Gopalan

Asked: October 14, 2021In: Class 12 Biology

How is the presently occurring species extinction different from the earlier mass extinctions?

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Rama Nand

Asked: October 14, 2021In: Class 12 Biology

Sometimes due to biotic/abiotic factor the community remains in a particular seral stage (Pre climax) without reaching the climax. Do you agree with this statement. If, yes give a suitable example.

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Kaisu Dev

Asked: October 14, 2021In: Class 12 Biology

What could be the reason for the fast rate of decomposition in the tropics?

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Gautam Dutta

Asked: October 14, 2021In: Class 12 Biology

When a foreign DNA is introduced in to an organism, how it is maintained in the host and how it is transferred to the progeny of the organism?

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Sammi

Asked: October 14, 2021In: Class 12 Biology

ELISA technique is based on the principles of antigen and antibody interaction. Can this techique be used in the molecular diagnosis of a genetic disorder, such as phenyketonuria?

Class XII Science Biology Extra Questions Class XIIth Science Biology Solutions 12th Biology Terminal Exam Based Extra Questions 12th Biology Science Session 2021-22

Is it true that if the dissolved oxygen level drops to zero the water will become septic. Give an example which could lower the dissolved oxygen content of an aquatic body.

Is it true that there is more solar energy available in the tropics? Explain briefly.

Primary productivity varies from ecosystem to ecosystem. Explain?

The number of trophic levels in an ecosystem are limited. Comment.

What is a tree line?

How is the presently occurring species extinction different from the earlier mass extinctions?

Sometimes due to biotic/abiotic factor the community remains in a particular seral stage (Pre climax) without reaching the climax. Do you agree with this statement. If, yes give a suitable example.

What could be the reason for the fast rate of decomposition in the tropics?

When a foreign DNA is introduced in to an organism, how it is maintained in the host and how it is transferred to the progeny of the organism?

ELISA technique is based on the principles of antigen and antibody interaction. Can this techique be used in the molecular diagnosis of a genetic disorder, such as phenyketonuria?

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