Why are ehrlichiosis and anaplasmosis of concern?
A) Both produce major signs that can be permanent.
B) Treatment is long and difficult for both.
C) Both are fatal.
D) Incidence of both is increasing.
E) Areas of infection are spreading to other countries.
Answer: D
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The combustion of fossil fuels, such as coal, oil, and gas, have contributed to the steady increase in atmospheric CO2 gas over the last 25 years.
Answer the following statement true (T) or false (F)
____________ is the study of how behavior contributes to the differential survival and reproduction of organisms.
A. Behavior B. Behavioral Ecology C. Evolution D. Population Ecology E. Community Ecology
Why is hypertension common among elderly people?
a. It arises from years of improper diet. b. It is due to constant exposure to chronic diseases. c. As blood vessels age, blood vessels stiffen and lose flexibility. d. Risk factors tend to increase with increasing age
Which body feature in birds is a necessity to allow powerful flight muscles to operate?
a. a beak b. hollow, light-weight bones c. a cloaca d. an enlarged sternum with a protruding keel to bones of the upper limb. e. keen eyesight