Ruby has observed that the 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,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
A. 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
B. 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
C. Ruby measures the height 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
D. 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
C. Ruby measures the height 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.
This statement best describes Ruby gathering enough evidence to support a scientific explanation concerning plant growth rates because it indicates that she is conducting a controlled experiment where all species are grown under the same conditions to ensure that differences in growth rates are due to the species and not other variables. Additionally, she supplements her experimental observations with information from scientific journal articles, adding credibility and context to her findings from established research on each species' growth rates.