Orchid bees are to Brazil nut trees as ________ are to pine trees
A) breezes
B) rain droplets
C) seed-eating birds
D) squirrels
A
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Microscope rulers measure microorganisms in micrometers (?m). How many micrometers fit in a meter?
A. 100 B. 1,000,000 C. 100,000 D. 1,000 E. 10
This animal has two atria and one ventricle and
two vascular circuits. This animal is
a. a frog. b. a woodpecker. c. an alligator. d. a rat. e. more than one of these.
Four of the five answers listed below are functions performed by the same organ. Select the exception
a. regulates pH of body fluids b. removes toxic substances from the blood c. storage and interconversion of carbohydrates, fats, and proteins d. inactivates hormones e. formation of urea from nitrogenous waste
The stomach begins chemical digestion of which of these substances?
A) sugars B) fats C) proteins D) carbohydrates