Download App

Biodiversity and Conservation — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYBiodiversity and Conservation3 Marks
Question
Answer the following questions:
Would Western Ghats ecosystems be less functional if one of its tree frog species is lost forever? Substantiate your answer in the light of hypothesis proposed by Paul Ehrlich.
✓

Answer

According to the hypothesis proposed by Paul Ehrlich, the "Rivet popper hypothesis", each species is essential in the balance of nature. If one is lost that much imbalance is caused in the ecosystem.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "3 Marks Question" from Biodiversity and Conservation→Biodiversity and Conservation — all question types→BIOLOGY STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

The F2 progeny of a monohybrid cross showed phenotypic and genotypic ratio as 1 : 2 : 1, unlike that of Mendel’s monohybrid F2 ratio. With the help of a suitable example, work out a cross and explain how it is possible.
→
What is a bioreactor? Explain its functioning.
→
What are 5' end and 3' end of a polynucleotide chain?
→
Expand the following:
  1. ART
  2. GIFT
  3. ICSI
  4. RTI
  5. IUI
→
Differentiate between two different types of pyramids of biomass with the help of one example of each.
→
What do you mean by semi-conservative replication? Describe the experiment conducted by Matthew Meselson and Franklin Stahl to prove that semi-conservative replication occurs in DNA. Draw a diagram of the semi-conservative DNA replication model.###What is the semi-conservative replication of DNA? Who proved this? Explain this experiment in detail.
→
How can education help in building up a socially responsible and reproductively healthy society? (Enumerate the aspects that should be emphasised).
→
Study the following diagram, and answer these questions:

  1. Why does a wide arrow point from both producers and consumers to decomposers?
  2. Why does a wide arrow point only from inorganic nutrient pool to producers?
  3. Why don't the wavy arrows point from decomposers to producers?
→
How do you distinguish between humification and mineralisation?
→
  1. Do all pollen grains remain viable for the same length of time? Support your answer with two suitable examples.
  2. How are pollen grains stored in pollen banks? State the purpose of storing pollen grains in these banks.
→