Passage V

Seeds from 100 plants of an annual wildflower species were collected and their mass (weight) was determined (Figure 1).

The seeds were divided into 3 groups. One group was planted in pots in a greenhouse. The second group was planted in meadow sites that had been cleared of vegetation. The third group was planted in meadow sites that had not been cleared of vegetation. The resultant plants were dried after flowering. Plants and seeds were weighed separately. Figure 2 shows the mass of the plants.

Figure 3 shows the average mass of seeds produced by the plants.

27. If one were to compare the masses of plants, for a given parent seed mass, as shown in Figure 2, one would conclude that the mass of the plants was greatest for plants grown in the:

Answer and Explanation

Your Answer is

Correct Answer is C

Explanation

No matter what the quality of the parent seed is in the greenhouse, the quality of the plants produced is higher than that of the other two groups, and no matter what the abscissa is at the uncleared site, it is lower than the other two groups, so choose C