Which of the following animals possess a hydrostatic skeleton?
A) flatworm
B) earthworm
C) butterfly
D) sea star
Correct Answer:
Verified
Q3: _ is/are constantly shed; _ is/are not
Q4: The outer covering of an animal,the _,functions
Q5: Which of the following is NOT part
Q6: The hypodermis lies underneath the integument and
Q7: The vertebrate skeleton became noticeably strengthened as
Q9: What replaces the notochord in most vertebrates?
A)nothing
B)the
Q10: In the structure of bone,the small channels
Q11: The oily secretion of sebaceous glands is
Q12: The process by which sweat is produced
Q13: Ultraviolet rays convert a chemical in the
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