A. 3500
B. 4500
C. 6000
D. 1900
Molluscan Success
Pearl button factories aproating the Mississippi river in 1900__________?
A. 196
B. 170
C. 190
D. 200
Fat pocketbook mussel face endangered situation because of___________?
A. habitat destruction
B. invasion of foreign
C. economic exploitation
D. all
When sperm release from male mussel then received by female in___________?
A. head
B. abdomen
C. mantle cavity
D. hands
Fat pocketbook mussel status is___________?
A. extinct
B. endangered
C. normal
D. constant
Study of animals is____________?
A. ecology
B. biology
C. zoology
D. botany
Neopilina class is___________?
A. chaetodermomorpha
B. mollusca
C. tryblidiida
D. tergomya
Word fovea meaning is____________?
A. small pit
B. tail
C. hand
D. mouth
Members of class scaphopoda are called__________?
A. tooth shell
B. tusk shell
C. legs shell
D. a and b both
Chitons shell divided into articulating dorsal valve___________?
A. one
B. three
C. four
D. eight