Tiwari Academy Discussion

Somvati

Asked: October 15, 2021In: Class 12 Biology

Why are conventional methods not suitable for the assessment of biodiversity of bacteria?

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Gopalan

Asked: October 14, 2021In: Class 12 Biology

The rate of decomposition of detritus is affected by the abiotic factors like availability of oxygen, pH of the soil substratum, temperature etc. Discuss.

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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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Gopal Das

Asked: October 14, 2021In: Class 12 Biology

Apart from plants and animals, microbes form a permanent biotic component in an ecosystem. While plants have been referred to as autotrophs and animals as heterotrophs, what are microbes referred to as? How do these microbes fulfil their energy requirements?

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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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Bal Kishna

Asked: October 14, 2021In: Class 12 Biology

Is it Possible to achieve ‘zero population growth rate? If yes, what kind of age pyramid is obtained?

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Roby Joon

Asked: October 14, 2021In: Class 12 Biology

Why are coral reefs not found from West Bengal to Andhra Pradesh but found in Tamil Nadu on the east coast of India?

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Gautam Dutta

Asked: October 14, 2021In: Class 12 Biology

Bt cotton is resistant to pest, such as lepidopteron, dipterans and coleopterans. Is Bt cotton resistant to other pests as well?

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Murti Lal

Asked: October 14, 2021In: Class 12 Biology

Gene expression can be controlled with the help of RNA molecule. Explain the method with an example.

Class 12 Science Biology Important Questions 12th Biology Terminal Exam Based Extra Questions 12th Biology NCERT Syllabus Questions Class 12th Science Session 2022-2023

Sumitra

Asked: October 14, 2021In: Class 12 Biology

Transgenic animals are the animals in which a foreign gene is expressed. Such animals can be used to study the fundamental biological process/ phenomenon as well as for producing products useful for mankind. Give one example for each type.

12th Science Biology Extra Questions Class 12th Biology Sample paper Questions Class 12th Biology NCERT Based Questions Class 12 Science Biology Terminal Exams Solutions

Why are conventional methods not suitable for the assessment of biodiversity of bacteria?

The rate of decomposition of detritus is affected by the abiotic factors like availability of oxygen, pH of the soil substratum, temperature etc. Discuss.

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.

Apart from plants and animals, microbes form a permanent biotic component in an ecosystem. While plants have been referred to as autotrophs and animals as heterotrophs, what are microbes referred to as? How do these microbes fulfil their energy requirements?

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

Is it Possible to achieve ‘zero population growth rate? If yes, what kind of age pyramid is obtained?

Why are coral reefs not found from West Bengal to Andhra Pradesh but found in Tamil Nadu on the east coast of India?

Bt cotton is resistant to pest, such as lepidopteron, dipterans and coleopterans. Is Bt cotton resistant to other pests as well?

Gene expression can be controlled with the help of RNA molecule. Explain the method with an example.

Transgenic animals are the animals in which a foreign gene is expressed. Such animals can be used to study the fundamental biological process/ phenomenon as well as for producing products useful for mankind. Give one example for each type.

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