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: -Endospore formation is usually triggered by a lack of nutrients, and usually occurs in gram-positive bacteria. In endospore formation, the bacterium divides within its cell wall, and one side then engulfs the other. Endospores enable bacteria to lie dormant for extended periods, even centuries.

Detailed explanation-3: -The spores are asexual reproductive bodies. Each tiny spore is covered by a hard protective coat known as a cyst to withstand unfavorable conditions such as high temperature and low humidity. So they can survive for a long time.

Detailed explanation-4: -Spores are involved in reproduction. Certain bacteria make spores as a way to defend themselves. Spores have thick walls. They can resist high temperatures, humidity, and other environmental conditions. The bacteria Clostridia form spores.