Urea is produced in the _____
A) liver from NH3 and carbon dioxide
B) liver from glycogen
C) kidneys from glycerol and fatty acids
D) bladder from uric acid and water
A
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Which of the following is a type of RNA?
a. mRNA b. fRNA c. sRNA d. dRNA
The effect of resource availability on
population size determines a. the carrying capacity of the environment. b. exponential growth. c. the doubling time of a population. d. the population's biotic potential. e. all of these
Which of the following visual association with its related cause is NOT correct?
A. color blindness - lack of red or green cones B. nearsighted - unable to see near objects in detail C. cataracts - lens becomes opaque with aging and sun exposure D. eyestrain - muscle fatigue from constant contraction of the ciliary muscle
When a bacteria cell lacks necessary nutrients, it becomes an ______. When it gains enough nutrients, it can become a ______.
Fill in the blank(s) with the appropriate word(s).