sea squirts squirt water it as simple as that
To survive
Camouflage I think
Sea squirts have a body shape that looks like a sponge or a rock.
check the encyclopedia,internet, etc.
Chordates such as the sea squirts and lancelets do not have a backbone that is why they are called vertebrate chordates.
Sea squirts can glow due to bioluminescence, a chemical reaction within their bodies that produces light. This bioluminescence can serve various functions for sea squirts, such as attracting prey, deterring predators, or communicating with each other.
Sea squirts (also known as cunjevoi) have a main diet of plankton
They can't. That's why you don't put them in a tank with fish!
urochordata
They draw in food
Land turtles defend themselves by going in their shells or finding holes to hide in. Sea turtles find places to hide and also go in their shell for protection.