62. Define population and community

With the help of suitable diagram describe the logistic population growth curve.

(a) adaptations of desert plants and animals.

(b) adaptations of plants to water scarcity.

(c) behavioural adaptations in animals.

(d) importance of light to plants.

(e) Effect of temperature or water scarcity and the adaptations of animals.

Define the following terms and give one example for each:
(a) Commensalism
(b) Parasitism
(c) Camouflage
(d) Mutualism
(e) Interspecific competition