Multiple Choice
A student encounters an animal embryo at the eight-cell stage. The four smaller cells that comprise 1 hemisphere of the embryo seem to be rotated 45° and to lie in the grooves between larger, underlying cells. This embryo may potentially develop into a(n) ________.
A) turtle
B) earthworm
C) sea star
D) sea urchin
Correct Answer:

Verified
Correct Answer:
Verified
Q26: Why might researchers choose to use molecular
Q27: What is the probable sequence in which
Q28: One hypothesis suggests that the Cambrian explosion
Q29: Use the table to answer the following
Q32: Arthropods invaded land about 100 million years
Q33: The primary difference between a coelom and
Q34: Use the figure to answer the question.<br><img
Q35: Which of the following is (are) unique
Q36: Use the information to answer the question.<br>Trichoplax
Q56: Placing sponges as the basal metazoans on