Which of the following is NOT a characteristic of most animals?
A) They have Hox genes.
B) They are heterotrophic.
C) They have an extracellular matrix of proteins such as collagen.
D) They have cell walls.
E) They have a nervous system.
Correct Answer:
Verified
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Q2: The number of animal species now known
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Q5: The putative ancestor of animals was:
A) choanoflagellates
B)
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Q7: You are given an embryo with eight
Q8: Metamerism is a characteristic feature of:
A) Annelida
B)
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