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प्रश्न
Which of the following is correct for r-selected species
पर्याय
Large number of progeny with small size
Large number of progeny with large size
Small number of progeny with small size
Small number of progeny with large size
उत्तर
Large number of progeny with small size
संबंधित प्रश्न
Explain why very small animals are rarely found in polar region.
In certain seasons we sweat profusely while in some other season we shiver. Explain.
Distinguish between Ectotherms and Endotherms
List the various abiotic environmental factors.
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 ________.
What are the ways by which organisms respond to abiotic factors?
Match List - I with List - II.
| List I | List II | ||
| (a) | Allen's Rule | (i) | Kangaroo rat |
| (b) | Physiological adaptation |
(ii) | Desert lizard |
| (c) | Behavioural adaptation |
(iii) | Marine fish at depth |
| (d) | Biochemical adaptation |
(iv) | Polar seal |
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 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.
What will happen to a well-growing herbaceous plant in the forest if it is transplanted outside the forest in a park?
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
