The urethra goes through what in a male?
What will be an ideal response?
Answer: The penis
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What is the main structural component of plants?
a. glucose b. glycogen c. chitin d. cellulose e. starch
Which insecticide has been outlawed in the United States but not in Latin America?
a. DDT b. pyrethrum c. inorganic phosphates d. biological insecticides e. sulfur-containing insecticides
Species diversity is highest when ________
A) species richness is high and relative abundance is unevenly distributed B) species richness is low and relative abundance is unevenly distributed C) species richness is high and relative abundance is evenly distributed D) species richness is low and relative abundance is evenly distributed
Which of the following is a serious concern when performing PCR?
A. Restriction enzymes are difficult to obtain in adequate quantities. B. The high temperature needed may denature the DNA. C. Lab personnel may be exposed to radiation. D. PCR is a very time-consuming process. E. Contaminating DNA may be introduced and amplified.