The single characteristic that all animals have that other organisms don't is that they:
A) undergo a blastula stage in development.
B) are single celled.
C) possess the ability to change location.
D) are terrestrial.
E) possess sensory systems.
Answer: A
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Four of the five features listed below characterize a
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Which of the following is NOT correct about plasmids?
A. Plasmids are small, circular DNA molecules that are separate from the much larger bacterial chromosome B. Plasmids can easily incorporate foreign DNA and are readily taken up by bacterial cells C. Plasmids act as DNA carriers that move genes from one cell to another d) all of the above are correct
Identify three possible components of a DNA nucleotide.
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A) histamine B) prostaglandins C) leukotrienes D) both histamines and leukotrienes E) both proteases and prostaglandins