Nicotine functions as stimulant because it facilitates release of

When one animal copies the appearance, actions, or sounds of another animal to avoid predators, it is called

Marijuana, Ganja and LSD are

The abundance of a species population within its habitat is called

Individuals of a species which occur in a particular area constitute

Competition is severe in a population that has a distribution which is

Consider the following four conditions (a - d) and select the correct pair of them as adaptation to environment in desert lizards.The conditions:
(a) Burrowing in soil to escape high temperature
(b) Losing heat rapidly from the body during high temperature
(c) Bask in sun when temperature is low
(d) Insulating body due to thick fatty dermis

In a population, if the rate of addition of new members is higher than the rate of individuals lost, it shows

Claustrophobia is fear of

In an ecosystem Biotic factors affect the survival of an organism in that ecosystem. They include