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)
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 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 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.