True or false: when an organism practices external fertilization, many offspring, often millions, are produced in order to enhance chances of survival.

The given statement is True.

When an organism practices external fertilization, many offspring are produced so as to increase the chances of survival of the offspring. There are chances that the predators may eat the eggs or the spring present outside.

There are chances that the eggs may not be fertile or can be destroyed by any means.

So, the organisms that posses external fertilization produce many offspring, often millions to increase the chances of survival.

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

air enters through the nose, moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi andbronchioles till the alveoli.