What term is given to the total genetic information carried by all members of a population?
A) chromosome complement
B) breeding unit
C) gene pool
D) genome
E) race
Answer: C
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Epinephrine blocks the contraction of muscles in the airways. Which of the other activities of epinephrine is most likely to be regulated by the same type of pathway?
A. Increased sweating. B. Stimulation of heart muscle cell contraction. C. Promotes the breakdown of glycogen in skeletal muscle cells D. Inhibition of saliva production in salivary glands E. Contraction of smooth muscle cells in blood vessels.
Which of the following is NOT a way that bacteria benefit humans?
A. production of foodstuffs such as cheese B. production of antibiotics C. breaking down wastes, toxins, explosives, and petrochemicals D. killing harmful insects E. transferring nutrients across intestinal membranes
Sexually transmitted diseases are a major cause of infertility. Knowing this, what method of birth control would you think is best for reducing infertility rates?
A. diaphragm B. vasectomy C. condoms D. oral contraceptives E. IUDs
Answer the following statements true (T) or false (F)
1.The tendency to concentrate sensory organs and brain at the head end of an animal is called cephalization. 2.Centipedes, earthworms, and roundworms all illustrate segmentation. 3.An animal with an indirect development undergoes a metamorphosis in which larvae do not resemble the adult. 4.Flatworms have complete digestive tracts. 5.Flatworms have bilateral symmetry.