True/False
The giant echiurans which live in the deep ocean vents are unusual,as they harbor chemosynthetic bacteria.
Multiple Choice Questions
Correct Answer:
Verified
Correct Answer:
Verified
Q2: When earthworms mate,the _ secretes mucus to
Q37: The paired appendages used for locomotion in
Q38: The larva of polychaetes is<br>A)lacking.<br>B)a pilidium.<br>C)a trochophore.<br>D)a
Q40: Leeches are found predominantly in freshwater habitats,but
Q41: Current medical uses of annelids involve<br>A)flatworms.<br>B)leeches.<br>C)polychaetes.<br>D)freshwater oligochaetes.
Q43: Leeches depend on _ for digestion of
Q44: Leeches secrete both an anesthetic and _
Q45: Some typical leech characteristics are as follows:<br>A)anterior
Q46: Earthworms possess paired fleshy appendages called parapodia.
Q47: Leeches<br>A)have a fixed number of somites.<br>B)respire through