This is a type of activity, seen in animals exposed to adverse stimuli, in which the tendency to act defensively is stronger than the tendency to attack.

The following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol

This part insulates the reaction chamber from the transfer of heat to or from the surrounding environment

Which member of the following food chain will be least affected by ddt, a pesticide water pollutant, if bio-magnification is occurring? algae> zooplankton> crayfish> leopard frog> large mouth bass