Rosalind Franklin is credited with ____
a. discovering DNA’s double helical structure
b. discovering DNA
c. first isolating DNA
d. building the first DNA model
e. cloning DNA
ANSWER: a
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Organisms able to live in environments with high sugar concentrations are
A) halotolerant. B) osmophiles. C) xerophiles. D) anaerobic fermenting bacteria.
In which of the following locations would you be most likely to find a species of Euglena?
A. Garden soil B. Intestine of humans C. Pond D. Rumen of a dairy cow
These are the only vertebrates in which blood flows directly from respiratory organs to body tissues without first returning to the heart.
A. Amphibians B. Birds C. Fishes D. Mammals E. Reptiles
Epinephrine is produced by the adrenal ________, which is under _____ control
a. medulla; neural b. medulla; pancreatic c. medulla; pituitary d. cortex; neural e. cortex; pituitary