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What do you call animals with no bones?
Any animal without bones are called invertebrates. Some of the most common ones that are found in the sea are echinoderms (starfish, sea cucumbers, sea urchins), cnidarians (jellyfish, anemones, coral), sponges, and mollusks (snails, mussels, squid).
What phyla that include simple aquatic organism?
Some phyla that include simple aquatic organisms are Porifera (sponges), Cnidaria (corals, jellyfish), Nematoda (roundworms), and Platyhelminthes (flatworms). These organisms often have basic body structures and are adapted to aquatic environments.
What is intervertebrate?
An Invertebrate is a creature with no back bone. The most common invertebrates include protozoa, annelids, echinoderms, mollusks and arthropods. Example of invertebrates: worms, snails, starfish, spiders and crabs.
Is radial symmetry common in echinoderms?
Yes, all echinoderms have radial symmetry.
Do chordates and echinoderms have a common ancestor?
yes
What is the Cnidarians common name?
The old name is coelenterate.
Why structures do mollusks have in common?
they are both invertebrates
What are cnidarians most common predators?
Common predators of cnidarians include sea turtles, fish such as triggerfish and butterflyfish, crustaceans like crabs, and certain species of snails and sea stars. Some marine birds also feed on cnidarians.
What common features do mollusks have?
they are slick slop and slimy
What do sponges and sea anomones have in common?
They are both pores
What is the most common behavior in animals like cnidarians and worms?
Group Behavior
What muscular body feature that all mollusks have in common?
foot
