The U.S. Food and Drug Administration warns children, mothers and potential mothers to avoid eating tuna because of high mercury levels. A typical can of albacore tuna contains about 4 times the amount of mercury that a healthy, average-sized adult may safely consume in a day. Do you think cans of tuna should carry labels warning of mercury content?

1.Yes; we can’t risk having children or mothers negatively affected by mercury poisoning.
2.No; the FDA advisory about mercury is enough warning.


2

Biology & Microbiology

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What type of pressure is not placed upon the environment as crop production expands? a. Pesticide runoff into the rivers

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Biology & Microbiology

Which group of mammals exhibits the widest

distribution and greatest diversity? a. marsupials b. monotremes c. placentals d. marsupials and monotremes e. placentals and monotremes

Biology & Microbiology

Which of the following characteristics does not apply to members of Protheria?

a. nocturnal b. insectivores c. aquatic d. placental mammals e. some weigh less than 5 g

Biology & Microbiology

How many chromosomes in a normal human cell?

a. 46 b. 11 c. 20 d. 23 e. 46+1

Biology & Microbiology