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31

What is homeostasis?

Explanation

Homeostasis is the tendency of the organism to maintain a constant internal environment despite varying external environmental conditions like temperature.

32

Define aestivation.

Explanation

Aestivation is a behavioural adaptation to avoid extreme heat and dessication in summer season. In which the organism slows down its metabolic activities.

It is also known as summer sleep.

33

What is diapause and its significance?

Explanation

It is a stage of suspended development that some organisms like zooplanktons in lakes and ponds, adopt to survive under unfavourable conditions.

34

What would be the growth rate pattern, when the resources are unlimited?

Explanation

In case of unlimited resources, the pattern of growth rate is exponential.

35

What are the organisms that feed on plant sap and other plant parts called?

Explanation

The organism that feed on plant sap and other parts of plants are termed as phytophagous.