SAT Subject Biology Practice Question 350: Answer and Explanation

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Question: 350

20. The following graphs show the growth of two closely related species of paramecia, both when grown alone (Figure 1) and when grown together (Figure 2). Both species consume bacteria as their food source and reproduce by binary fission as often as several times a day.

Figure 1

Figure 2

Paramecia are members of the kingdom

A. fungi
B. animalia
C. archaea
D. protista
E. plantae

Correct Answer: D

Explanation:

D Paramecia are single-celled eukaryotes, members of kingdom Protista.

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