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How many tissue layers does a hydra sea serpent have?
two layers but so have three
What phylum has 2 layers of tissue?
The phylum Cnidaria has two layers of tissue: the outer epidermis and the inner gastrodermis separated by a jelly-like mesoglea layer. This simple body plan is characteristic of organisms like jellyfish and sea anemones.
How does a sea star feeds on and digests clams?
yes, sea stars can eat clams. They use their tube feet to open the shells and then eat the clams tissue.
How many fish's are there in the sea?
As many stars are there in the sky.
How many types of sea urchins?
Sea star or starfish (Asteroidea)Brittle stars, basket stars, serpent stars (Ophiuroidea)Sea urchins, heart urchins and sanddollars (Echinoidea)Holothurians or sea cucumbers (Holothuroidea)Feather stars and sea lilies (Crinoidea).
What phylum contains sea stars?
Includes: Sea Stars, Sea Lillies, Sea Urchins, Sea Cucumbers, Brittle Stars
What does sea stars feed on?
Sea stars are prey of sea turtles, basking sharks, sun fish, and many other sea animals.
What are facts about sea stars?
sea stars have NO brains
Are sea stars flexible?
sea stars are flexible. sea stars do not have any bones. so they are very flexible:)
Are sea stars the same as sea fish?
Sea stars are not fish so no, it is not.
What are the groups of echinoderms?
Sea stars, brittle stars, sea urchins, and sea cucumbers.
Do sea stars have trouble in their habitat?
That, obviousely, depends of the starfish species and, of cource the habitat conditions, as well as the other creatures it holds. Common sea stars (Asterias Rubens) for example have their tube feet eaten by Harlequin Shrimps. Sea stars are generally not popular prey for fish, since they are hard to remove from the rock, and due to their spiny skin tissue. But many crustaceans, such as crabs, lobsters and shrimps and well as other sea stars often prey on them. Some sea stars have developed defences against the predators they have. The ultimate example is the crown of thorns, a 60 cm wide sea star living in the indian and pacific oceans. It has developed hundreds of sharp, poisonous spines on its back, and has very few predators. Some sea stars, however, do not have such a defence, and in turn have trouble in their habitat. Many crustaceans and fish cannot consume the whole sea star, so they simply tear off one of its arms. Sea stars can regrow their arms, but this takes a lot of energy in the form of protein reserves. Ironically, one of the largest sea stars in existance, the Sunflower Sea star, is often a victim of this. Apart from predators, starfish are perfectly adapted to life on the sea floor.
