Which statement is NOT correct about the roundworms?
A. Roundworms have a tube-within-a-tube body plan.
B. There are three layers of tissues in the body.
C. Roundworms have a smooth unsegmented outside body wall.
D. Roundworms are all parasitic.
E. There is an internal body cavity called a pseudocoelom.
Answer: D
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A) ions. B) sugars. C) amino acids and peptides. D) polysaccharides. E) All of the above are correct.
You would expect the Hox genes of a mosquito and a rabbit to be very _________
Fill in the blank(s) with the appropriate word(s).
If a neutral atom has an atomic number of 10, then we know that it has:
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