Question: Which of the following objects, in its original, unprocessed biological form, has the core function of serving as long-term energy storage?
A. The object in the lower-left corner
B. The object in the upper-left corner
C. The objects in the upper-left, upper-right, and lower-right corners
D. The lower-left object is the best source of ascorbic acid
Clues:
1. An object in the upper-left is a slice of a tuber, likely a potato, with light-colored flesh and skin visible.
2. An object in the lower-left is a slice of a fruit, likely an apple, with white flesh and red skin.
3. An object in the upper-right is a round, golden-brown cracker.
4. An object in the lower-right is a thin, irregularly shaped snack, likely a potato chip.
5. A dark liquid has been applied to all four items.
6. On the potato slice (upper-left), the area with the liquid has turned a very dark, greenish-black color.
7. On the apple slice (lower-left), the area with the liquid has turned a brownish-orange color.
8. On the cracker (upper-right) and the potato chip (lower-right), the areas with the liquid have turned a very dark, black color.
Answer: B
Category: Biology