What are some advantages and disadvantages of having an exoskeleton?

Hello,

Some advantages are:

1. They have jointed appendages, allowing for more movement.

2. It helps prevent the organism from drying out.

3. They help protect the organism from physical damage.

Disadvantages:

1. Exoskeletons must be shed, leaving the organism vulnerable.

2. Exoskeletons cannot grow.

3. Extra sensory organs are required for optimal function.

Hope this was helpful!

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

clumped distribution, because you'de have all of the population gathered in a relatively small are.

it's the most common because it provides protection and a mate for reproduction

example: humans, seeweed, cattles, etc.