What name is given to the food-trapping cells of sponges?
A) phagocytes
B) amoebocytes
C) flame cells
D) choanocytes
Correct Answer:
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Q1: A(n)_ is an example of a mollusc
Q2: Flatworms are similar to cnidarians in that
Q7: The arthropod skeleton is composed of _.
A)cellulose
B)peptidoglycan
C)chitin
D)glycogen
Q8: The common ancestor of all animals is
Q9: A characteristic of arthropods that has allowed
Q10: A true coelom is _.
A) completely lined
Q11: What distinguishes animals from other eukaryotes?
A) They
Q12: Humans are chordates.Which animal group is most
Q17: _ are characterized by stinging cells used
Q18: There are more species of _ than
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