Question

question 12
1 pts
the benefit of a sponge producing gemmules is that gemmules _.
help to filter food for the sponge
are a form of sexual reproduction
defend the sponge against predators
allow the sponge to survive ong periods of harsh conditions

Explanation:

Gemmules are internal buds in sponges. They are resistant to harsh conditions like drought, freezing, etc. When the parent sponge dies (due to harsh conditions), gemmules can remain dormant. Once the environment becomes favorable again, they can develop into new sponges. Filter - feeding is done by choanocytes (collar cells) in sponges, not gemmules. Gemmules are a form of asexual reproduction (not sexual). Sponges have spicules for defense against predators, not gemmules.

Answer:

allow the sponge to survive long periods of harsh conditions