The side toes of a horse, the pelvis of the whale, and the human appendix are all examples of structures that resemble structures of presumed ancestors, which are known as
A. acquired structures.
B. homologous structures.
C. homeotic mutations.
D. developmental structures.
E. vestigial structures.
Answer: E
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Communication between animal cells is facilitated by
A) tight junctions. B) gap junctions. C) adhesive junctions. D) plasmodesmata. E) gap and adhesive junctions.
Proximate causes of behavior have evolutionary explanations
____________________ Indicate whether the statement is true or false.
Which molecule is incorrectly matched with its monomer?
A. Fat; fatty acid B. Starch; fructose C. Protein; amino acid D. Cellulose; glucose E. Nucleic acids; nucleotide
A ________ is used in industrial microbiology to produce microbial products that are only synthesized during log phase growth.
A. Coulter counter B. broth culture C. spectrophotometer D. pour plate E. chemostat