Sea lettuce is an edible group of green algae. It may be tropical originally, but now is found worldwide. It is a food source for many different sea animals as well as humans in fishing villages in Scandinavia, Great Britain, Ireland, China and Japan. It has no more protection than a land lettuce. It grows very quickly and can have very long leaves when it is in a sheltered area. When it dies, it releases hydrogen sulfide as it decomposes.
thay have polsonous
yes
A sea sponge protect itself by releasing toxic gases.
by blending in with its surroundings
he is easy to be eaten in the sea
evisceration .
its shell
It protects itself with the thron-like formations on its back and tail
It
what eats a sea star and how does it protect itself
Venom, some of the most toxic in the world
Thick fur