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प्रश्न
Which of the following is correct for r-selected species
विकल्प
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
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उत्तर
Large number of progeny with small size
संबंधित प्रश्न
Give an example of an organism that enters 'diapause' and why.
Explain why very small animals are rarely found in polar region.
During a school trip to ‘Rohtang Pass’, one of your classmate suddenly developed ‘altitude sickness’. But, she recovered after sometime.
- Mention one symptom to diagnose the sickness.
- What caused the sickness?
- How could she recover by herself after sometime?
In certain seasons we sweat profusely while in some other season we shiver. Explain.
Explain with the help of suitable examples the three different ways by which organisms overcome their stressful conditions lasting for short duration.
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List the various abiotic environmental factors.
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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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?
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.
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What is diapause and its significance?
Give one example for the following:
Antifreeze compound seen in antarctic fish
