Which difference distinguishes protostomes from deuterostomes?
A) nervous system
B) embryonic development
C) circulatory system
D) cephalization
E) presence or lack of notochord
Correct Answer:
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Q1: Which of the following is correct in
Q5: Which of the following organisms are considered
Q7: Press a sponge through a coarse cloth
Q8: Filter feeders are usually
A) active predators.
B) sessile
Q8: A sponge actually feeds by
A)acting as a
Q9: Why are real bath sponges so soft?
A)The
Q10: Which of these is NOT a characteristic
Q12: A recent study of the marine hawksbill
Q13: Which statement is NOT true about invertebrate
Q15: Which of the following organisms exhibit radial
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