The major difference between protostomes and deuterostomes is the
A) way the body cavity forms.
B) type of body symmetry.
C) presence or absence of cephalization.
D) presence or absence of tissues.
E) presence or absence of a coelom.
Correct Answer:
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Q6: Between the organs and the body wall,
Q7: How many tissue layers are in the
Q7: The common ancestor of sponges and other
Q10: Which of the following animal phyla is
Q13: Which of the following characteristics is often
Q14: An arthropod embryo has _germ layer(s).
A) no
B)
Q14: All animals with tissues have
A) two germ
Q15: One trend in the evolution of animals
Q16: In the animal kingdom, cephalization is
A) development
Q18: A cnidarian, which is radially symmetrical, has
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