The ____ is a single layer of parenchyma cells that give rise to muticellular lateral roots
a. endodermis
b. periderm
c. cortex
d. vascular cambium
e. pericycle
e
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Choose the true statement about foreign DNA in the human genome.
A. Most of the foreign DNA in the human genome is ancient. B. Most of the foreign DNA in the human genome is coding DNA. C. Like the Drosophila genome, the human genome is constantly eliminating its foreign DNA. D. New foreign DNA is regularly entering the human genome.
A 36-year-old man who has traveled for several weeks in the orient is experiencing abdominal pain and diarrhea with a large amount of mucus. A H. heterophyes egg measuring 28 by 15 µm is identified in the stool. The treatment of choice for this intestinal trematode is:
a. metronidazole. b. chloroquine. c. albendazole. d. praziquantel.
Yersinia pestis typically contains
A. one plasmid. B. two plasmids. C. three plasmids. D. four plasmids.
Which organ system includes the spleen, lymph nodes, and thymus?
a. circulatory system b. endocrine system c. nervous system d. digestive system e. lymphatic system