Organisms cope up with abiotic stress by: (i) Regulating Some organisms maintain homeostasis by physiological and behavioural means. They are called regulators, e.g.
In summers, when outside temperature is more, we sweat profusely that results in evaporative cooling to bring down the body temperature.
In winters, when temperature is low, we shiver (a kind of exercise) that produces heat and raise the body temperature.
(ii) Conformating Organisms that cannot maintain a constant internal environment. Their body temperature changes with the ambient temperature. Such animals are called conformers. For example, small animals have larger surface area relative to their volume. They lose body heat very fast in low temperature. So, they expend energy to generate body heat through metabolism for adjusting. (iii) Migrating The temporary movement of organisms from the stressful habitat to a more hospitable area and return when favourable conditions reappear is called migration. The long distance migration is very common in birds.
List the different ways by which organisms cope or manage with abiotic stresses in nature. Explain any three ways.
Answers
Amar kukreja
Organisms cope up with abiotic stress by:
(i) Regulating Some organisms maintain homeostasis by physiological and behavioural means.
They are called regulators, e.g.
(ii) Conformating Organisms that cannot maintain a constant internal environment. Their body temperature changes with the ambient temperature. Such animals are called conformers. For example, small animals have larger surface area relative to their volume. They lose body heat very fast in low temperature. So, they expend energy to generate body heat through metabolism for adjusting.
(iii) Migrating The temporary movement of organisms from the stressful habitat to a more hospitable area and return when favourable conditions reappear is called migration. The long distance migration is very common in birds.