Define the following.
a) Respiration.
b) Photosynthesis.
c) Stimulus.
d) Excretion.
e) Locomotion.

Explanation

a) Respiration: Respiration is the process in whichenergy is released by oxidation of food.
Photosynthesis: The process of making food by the plants from carbon dioxide and water vapour in the surroundings in the presence of sunlight is called photosynthesis.
c) StimulusL It is the happening in the surroundings which effects an individual.
d) Excretion: The disposal (throwing out) of water materials produced during various activities whch takes place in the bodies of organisms is called excretion.
e) I ocomotion. The ability of an organisms to move from place in which the body changes its location.