1. You discover a new animal that you suspent may be a sponge. You note it is neither diploblastic nor triploblastic. You should also note that itâ¦
a. Has no spicules
b. Has no nerve or muscle tissue
c. Has no collar cells
d. Has no osculum
2. What is the best anatomical feature to look for to decide that a mollusk you found in the ocean is a true crab and not a horseshoe âcrab?â
a. Presence of compound eyes
b. Claw-like mouthparts (chelicerae)
c. Two tagmata )cephalothorax and abdomen
d. Hard carapace
3. Imagine you are a paleontologist working in Ediacarian deposits and you find a new fossil species with a shell of some sort. This would probably make the ânewsâ section of Science and Nature becauseâ¦.
a. Animals from edicarian have only bilateral symmetry
b. Animals from edicarian typically have a cephalization but no shells.
c. Animals from edicarian normally have no shells or any other hard parts.
d. Animals from eidc arian are only vertebrates.
4. While sampling marine plankton in a lab, a student encounters large numbers of fertilized eggs. The student rears some of the eggs in the laboratory for further study and finds that the blastopore becomes the mouth. The animal has torsion and eventually develops a radula. These eggs belong to aâ¦
a. Clam
b. Squid
c. Chiton
d. Snail
1. You discover a new animal that you suspent may be a sponge. You note it is neither diploblastic nor triploblastic. You should also note that itâ¦
a. Has no spicules
b. Has no nerve or muscle tissue
c. Has no collar cells
d. Has no osculum
2. What is the best anatomical feature to look for to decide that a mollusk you found in the ocean is a true crab and not a horseshoe âcrab?â
a. Presence of compound eyes
b. Claw-like mouthparts (chelicerae)
c. Two tagmata )cephalothorax and abdomen
d. Hard carapace
3. Imagine you are a paleontologist working in Ediacarian deposits and you find a new fossil species with a shell of some sort. This would probably make the ânewsâ section of Science and Nature becauseâ¦.
a. Animals from edicarian have only bilateral symmetry
b. Animals from edicarian typically have a cephalization but no shells.
c. Animals from edicarian normally have no shells or any other hard parts.
d. Animals from eidc arian are only vertebrates.
4. While sampling marine plankton in a lab, a student encounters large numbers of fertilized eggs. The student rears some of the eggs in the laboratory for further study and finds that the blastopore becomes the mouth. The animal has torsion and eventually develops a radula. These eggs belong to aâ¦
a. Clam
b. Squid
c. Chiton
d. Snail
