Which of the following statements about cells is true?
A) All cells have cell walls.
B) All cells have internal structures that move.
C) All cells are attached to other cells.
D) All cells are motile.
Answer: B
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Which of the following best describes the special "high-energy" bond of ATP?
A) phosphoester B) phosphoanhydride C) hydrogen D) ionic E) hydrogenation
Illustrate how the five basic human eye colors can be explained by a model using two genes (A and B), each of which has two alleles (A and a, B and b)
What will be an ideal response?
Put the three events of aerobic cell respiration in order:
What will be an ideal response?
Which drug, if taken during pregnancy, results in infants with severely deformed arms and legs?
a. tetracycline b. thalidomide c. streptomycin d. salicylic acid e. codeine