The label on the box of breakfast cereal lists one serving as containing "200 Calories" per serving. How many calories are actually in one serving?
A) 20
B) 2,000
C) 200,000
D) 2,000,000
Answer: C
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Which choice describes a biological population?
A) A bird, a lizard, and an insect in a cage at a zoo B) An all-male army C) People living in an apartment building D) Pebbles on a beach
Just before entering the small intestine, what is the pH of chyme?
A) very basic (very high pH) B) slightly basic (high pH) C) neutral (pH near 7) D) acidic (low pH)
Consider the aquatic insects pictured in the accompanying figure. Which characteristic of water molecules directly
contributes to their remarkable "water walking" success?
a. ionic bonds
b. capillary action
c. hydrogen bonds
d. adhesive forces
e. nonpolar covalent bonds
Which of the following undergoes meiosis during the development of pollen grains?
A) Megaspore B) Generative nucleus C) Microspore D) Microspore mother cell E) Megaspore mother cell