Tiny,sessile Pseudocoelomate Animals That Superficially Resemble Hydroid Cnidarians Belong to the Phylum

Q11: The lophotrochozoans are now believed to include

Q12: The ribbon worms differ from the flatworms

Q13: Ectoprocta<br>A)live in marine and freshwater habitats.<br>B)typically form

Q14: A lophophorate phylum that is primarily marine,but

Q15: Brachiopoda<br>A)are called bryozoans.<br>B)have a mantle and two

Q15: The fleshy stalk of a brachiopod is

Q17: The valves of brachiopods are<br>A)secreted by the

Q18: Because of the shape of their shells,the

Q19: The lophophore contains within it an extension

Q21: Small organisms that cling to the jaws