An endospore may survive a drought because it is protected by a

b thick wall

Explanation:

a. hollow bridge.

b. thick wall.

c. plasma membrane.

d. plasmid replication.

An endospore may survive a drought because it is protected by a thick wall.

An endospore represents an extremely tough and dormant cell structure produced by some specific type of bacteria. The structures are resistant and primarily produced to ensure survival in the face of adverse environmental conditions.

Endospores are made up of the bacterial's DNA and ribosomes along with a large amount of a special type of acid that helps them to remain dormant - the dipicolinic acid. The entire structure is protected by a thick wall which contributes to their ability to survive tough environmental conditions.

The correct option is b.