Organism and Its Environment - Responses to Abiotic Factors

Explain any two alternatives by which organisms can overcome stressful external conditions.

State how the constant internal environment is beneficial to organisms.

Give an example of an organism that enters 'diapause' and why.

During a school trip to 'Rohtang Pass', one of your classmate suddenly developed 'altitude sickness'. But, she recovered after sometime.
(a) Mention one symptom to diagnose the sickness.
(b) What caused the sickness?
(c) How could she recover by herself after sometime?

Explain with the help of suitable examples the three different ways by which organisms overcome their stressful conditions lasting for short duration.

In certain seasons we sweat profusely while in some other season we shiver. Explain.

Explain why very small animals are rarely found in polar region.

List the various abiotic environmental factors.