Sea Urchins
sea otters ARE consumers. All animals that eat either plants (producers) or other animals are consumers.
Killer whales eat kelp from time to time. Other animals that eat kelp include sea otters and sea urchins.
Alligators DON'T eat sea otters, Killer whales (orcas) do!
Sea otters are secondary consumers. This because sea urchins are primary and sea otters eat sea urchins.
cougars dont live in the same ecosystem as sea otters
Sea otters have to eat at least 25% oftheir body weight each day.
There are several animals that eat sea urchins. Sea otters, sunflower stars, snails, crabs and some species of fish predate upon sea urchins.
Otters
Sea Otters eat abalone which eat the kelp. Kelp provides a safe fish nursery for fry.
Sea urchins have poisonous spikes so sea life find it very hard to eat them. But otters use rocks to crack them open and eat them also humans will gut the sea urchin and eat there insidesYou can find out by asking other people like your teacher, parents, friends, and brothers or sisters if you don't think this answer is right. the answer is otters, people, and heron.
Sea Otters find sea urchins on the ocean floor and break it open with a rock. It will then eat everything except the spines (the insides).