Predators in nature are ‘prudent’ because:

1.	This keeps their own population in check
2.	Prudence keeps their hunting skills up to date
3.	Lack of prudence can lead to their own extinction
4.	This helps in the maintenance of genetic diversity in their gene poll

Camouflage is:

The monarch butterfly acquires distasteful toxin during:

About what percent of all insects is phytophagus?

The most common means of morphological defense in plants against herbivory are:

As a mechanism of defense against herbivory, Calotropis:
1. Has a large number of thorns
2. Secretes cardiac glycosides
3. Produces a neurotoxin, strychnine
4. Releases a hallucinogen

Nicotine, caffeine, quinine and opium produced by plants are actually:

Consider the given statements regarding competition amongst organisms:

The correct statement/s is/are:

In some shallow American lakes, unrelated visiting Flamingoes and resident fishes compete for the common food which is:

A process in which the fitness of one species is significantly lower in the presence of another species, is termed as :