Diapause

Q. A stage of suspended development found in many zooplankton species is called

1. hibernation
2. diapause
3. aestivation
4. migration

Q. Assertion : Many zooplankton species in lakes and ponds enter the state of diapause.
Reason : Diapause is a state of suspended development, in response to unfavourable conditions.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion
3. Assertion is true but the reason is false
4. Both assertion and reason are false

Q. Assertion (A): Diapause is a state of suspended development
Reason (R): Many phytoplankton species enter the state of diapause under unfavourable conditions

1. Both assertion and reason are true and the reason is the correct explanation for the assertion
2. Both assertion and reason are true but the reason is not the correct explanation for the assertion
3. Assertion is true but the reason is false
4. Both assertion and reason are false

Q.

How is diapause different from hibernation?

Q. Different animals respond to changes in their surroundings in different ways. Taking one example each, explain some animals undergo aestivation while some others hibernation. How do fungi respond to adverse climatic conditions? [3]

Q. A stage of suspended development found in many zooplankton species is called

1. hibernation
2. diapause
3. aestivation
4. migration

Q.

How is diapause different from hibernation?

Q. Match the following:

a.Bacteria	i) Diapause
b.Bear	ii) Thick walled resting spores
c.Zooplanktons	iii) Hibernation

1. a-ii, b-iii, c-i
2. a-i, b-ii, c-iii
3. a-iii, b-i, c-ii
4. a-ii, b-i, c-iii

Q. How do snails, seeds, bears, zooplanktons, fungi and bacteria adapt to conditions unfavourable for their survival? [3]

Q. How do snails, virus, zooplanktons, bacteria, fungi, seed, and bears adapt to unfavourable conditions

Q.

How is diapause different from hibernation?