Ruby has observed that plants in her garden vary in height. She wants to investigate whether a plant species (species A) grows faster than the other garden species (species B, C, and D). Select the statement that describes Ruby gathering enough evidence to support a scientific explanation concerning plant growth rates.

Note: Consider reviewing how Ruby developed her conclusion on page 8 of this lesson to select the best answer.

(1 point)
Responses

Ruby measures the heights of several species A, B, C, and D plants, each species for one week at a time for four consecutive weeks.
Ruby measures the heights of several species A, B, C, and D plants, each species for one week at a time for four consecutive weeks.

Ruby measures the heights of several species A, B, C, and D plants for a week under different conditions and finds a journal article that describes the growth rate of species A.
Ruby measures the heights of several species A, B, C, and D plants for a week under different conditions and finds a journal article that describes the growth rate of species A.

Ruby measures the heights of several species A, B, C, and D plants for a week under the same conditions and finds journal articles that describe the growth rates of each species.
Ruby measures the heights of several species A, B, C, and D plants for a week under the same conditions and finds journal articles that describe the growth rates of each species.

Ruby measures the height of a species A plant for a week and finds an anonymous gardening blog that describes the growth rate of species A.

Ruby measures the heights of several species A, B, C, and D plants for a week under the same conditions and finds journal articles that describe the growth rates of each species.

The best answer is:

Ruby measures the heights of several species A, B, C, and D plants, each species for one week at a time for four consecutive weeks.

To gather enough evidence to support a scientific explanation concerning plant growth rates, Ruby needs to measure the heights of all the plant species (A, B, C, and D) over a period of time. This will allow her to observe their growth rates and compare them. By measuring the plants for four consecutive weeks, she can track their growth over time and make more accurate comparisons.

The statement that describes Ruby gathering enough evidence to support a scientific explanation concerning plant growth rates is:

Ruby measures the heights of several species A, B, C, and D plants, each species for one week at a time for four consecutive weeks.

This statement shows that Ruby is measuring the heights of multiple plants from each species over a period of time, which allows her to gather sufficient data to compare and analyze the growth rates of different plant species accurately.