The first complete plant genome to be sequenced was that of ____
a. Phaseolus vulgaris (kidney bean)
b. Arabidopsis thaliana (thale cress)
c. Zea mays (corn)
d. Capsella burse-pastoris (shepherd's purse)
e. Oryza sativa (rice)
ANSWER: b
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Charles Darwin noted that the human lineage probably arose out of Africa. Which of the following was most likely the reason behind his hypothesis?
A. Africa has warmer temperatures, which allows for greater diversity. B. Gorillas and chimpanzees, which are the primates most closely related to humans, only live in Africa. C. Africa was the first land mass that was suitable for life. D. This was before the advent of molecular analysis, so Charles Darwin was incorrect. E. None of the answer options are correct.
Which of the following is most likely synthesized on free ribosomes?
A. Polypeptide chains that form enzymes which function in glycolysis B. Polypeptide chains that form immunoglobulin molecules C. Lysosomal enzymes D. Electron carriers of the electron transport chain
Nutrient-rich microenvironments can occur in the open ocean around:
a. viriplankton. b. discarded larvacean houses. c. marine snow. d. b and c
The heart is located in which body cavity?
a. cranial b. thoracic c. spinal d. abdominal e. pelvic