A relationship between two organisms living together for mutual benefit

Study of inter-relationships between organisms and their environment is

The relationship between the two organsims when grown individually (Secton P) and grown together (Section Q) is shown in the graph. The relationship is most likely to be

Food web is constituted by (a) relationship between the organisms and the environment. (b) relationship between plants and animals (c) various interlinked food chains in an ecosysystem (d) relationship between animals and environment.

The energy and biomass relationship between the organisms at different trophic levels can better expressed by

Organisms living in open sea are called

[A] : Ecology is the study of interrelationship between living organisms and their non-living environment . [R] : The biotic community and non-living environment of an area function together to form an ecosystem .

Which of the following statements regarding species interdependence are true? 1. An association of two species where one is benefited and other remains unaffected is called mutualism. 2. An interspecific association where both partners derive from each other is called commensalism. 3. A direct food relation between two species of animals in which one animals kills and feeds on another is referred as predation. 4. A relationship between two species of organism where both the partners are benefited from each other is called symbiosis.

Is there a relationship between the size of an organism and its life span ? Give two examples support of your answer.

The relationship between organisms of different trophic levels is ideally represented by pyramid of

The correct relationship between the two current gains alpha and beta in a transistor is