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प्रश्न
Distinguish between Hibernation and Aestivation
उत्तर
| Hibernation | Aestivation |
| Hibernation is a state of reduced activity in some organisms to escape cold winter conditions. | Aestivation is a state of reduced activity in some organisms to escape desiccation due to heat in summers |
| Bears and squirrels inhabiting cold regions are examples of animals that hibernate during winters. | Fishes and snails are examples of organisms aestivating during summers. |
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संबंधित प्रश्न
Give an example of an organism that enters 'diapause' and why.
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Explain any two alternatives by which organisms can overcome stressful external conditions.
Distinguish between Ectotherms and Endotherms
The following question(s)/statement(s) has four suggested answers. Choose the correct option in the following case.
The curve showing the amount of light absorbed at each wavelength is : ____________.
Answer the following question.
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Answer the following question.
Why are there more conformers than regulators in the animal world?
The figure given below is a diagrammatic representation of response of organisms to abiotic factors. What do A, B and C represent respectively.
| S. No. | A | B | C |
| a. | Conformer | Regulator | Partial Regulator |
| b. | Regulator | Partial Regulator | Conformer |
| c. | Partial Regulator | Regulator | Conformer |
| d. | Regulator | Conformer | Partial Regulator |
Some organisms are able to maintain homeostasis by physical means ________.
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Reason (R): Due to low atmospheric pressure at high altitudes, the body does not get sufficient oxygen.
In the light of the above statements, choose the correct answer from the options given below.
Assertion(A): A person goes to high altitude and experiences ‘altitude sickness’ with symptoms like breathing difficulty and heart palpitations.
Reason(R): Due to low atmospheric pressure at high altitudes, the body does not get sufficient oxygen. In light of the above statements, choose the correct answer from the options given below.
Name the association in which one species produces poisonous substance or a change in environmental conditions that is harmful to another species.
Define aestivation.
Why do all the fresh water organisms have contractile vacuoles whereas majority of marine organisms lack them?
Give one example for the following type.
Migratory animal
