The overhunting of sea otters along the Pacific Coast resulted in which of the following?

Many fish lost their habitats

as kelp was destroyed by sea urchins.

The sea urchin population declined dramatically.

Kelp began to grow out of control.

The population of sea otters on the Pacific Coast went extinct.

1 or 4

Many fish lost their habitats as kelp was destroyed by sea urchins.

Explanation:

The sea otter is a mammalian animal that lives in marine environments and is threatened with extinction, due to the exhaustive hunting that has passed.

Otters play a very important role in the environment. This is because these animals are able to protect marine algae from their habitat. That's because they feed on sea urchins that are great destroyers of seaweed. These seaweed serve as a habitat for many fish.

In these cases, the decrease in otters due to hunting, has caused the extinction of this animal, in addition to leaving many fish without habitat, because the sea urchin population is without a predator and ends up causing losses of seaweed.