EVERYDAY SCIENCE

Detailed explanation-1: -Endospores germinate back into vegetative cells (an active bacterial cell that undergoes metabolism) when surrounding environmental conditions favor bacterial growth and reproduction.

Detailed explanation-2: -Endopsore are the resting stage during the life cycle of some bacteria, formed in response to adverse conditions. The bacterial cell changes into a partially dehydrated core, enclosed in a multilayered protein coat.

Detailed explanation-3: -Endospore Formation and Structure. Endospores are formed in response to unfavorable growth conditions in the bacterial environment, most commonly induced by the limitation of nutrients. Sporulation, however, is not the first response of the bacterial cell to nutrient depletion.

Detailed explanation-4: -Thus, the correct answer is ‘Endospores.

Detailed explanation-5: -Examples of bacterial species that can form endospores include Bacillus cereus, Bacillus anthracis, Bacillus thuringiensis, Clostridium botulinum, and Clostridium tetani.