Which of the following statements about uric acid is true?
A) Uric acid requires less water to excrete than does urea.
B) Uric acid is more soluble in water than urea.
C) The darker material in bird droppings is mostly uric acid.
D) Uric acid is more toxic than ammonia.
Answer: A
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Precipitation reactions carried out in agarose are called
A. hemagglutination tests. B. complement fixation tests. C. immunodiffusion tests. D. ELISA tests.
To distinguish two organisms using the morphological species concept, a scientist would ____
a. perform a genetic analysis on the two organisms b. look at the appearance of two organisms c. mate the two organisms to see if viable offspring result d. observe the mating rituals of the two organisms
e. trace the common ancestry of the two organismsThe process of germination begins with ____
a. one sperm cell fusing with an egg b. one sperm cell fusing with the endosperm mother cell c. pollen landing on a stigma d. water soaking into soil e. water seeping into a seed
majority of carb molecules are produced by ____________________.
What will be an ideal response?