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.

Question

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 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 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 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.
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, each species for one week at a time for four consecutive weeks.

Answer 1

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.

Answer 2

You weigh 5 kittens all from the same litter and get the following data (in pounds):

1.05, 1.2, 1.15, 1.2, 1.4.

Calculate the average weight of the kittens, in pounds.

(1 point)
Responses

1.15
1.15

1.2
1.2

1.0
1.0

1.3

Answer 3

To calculate the average weight of the kittens, you add up all of the weights and then divide by the total number of kittens.

(1.05 + 1.2 + 1.15 + 1.2 + 1.4) / 5 = 1.2

So, the average weight of the kittens is 1.2 pounds.

Answer 4

Which sentence most accurately describes the daily growth rate of plants?(1 point)
Responses

sum of individual plant heights divided by total number of plants
sum of individual plant heights divided by total number of plants

average plant height divided by total number of plants
average plant height divided by total number of plants

sum of individual plant heights divided by number of days
sum of individual plant heights divided by number of days

average change in plant height divided by number of days

Answer 5

The most accurate sentence that describes the daily growth rate of plants is: "average change in plant height divided by number of days."

Answer 6

Which example best describes the influence of genetic factors?(1 point)
Responses

A horse is the same size as its parents and similar height to other horses of the same breed that it lives with on a farm.
A horse is the same size as its parents and similar height to other horses of the same breed that it lives with on a farm.

A corn plant is the same height as another corn plant of a different variety.
A corn plant is the same height as another corn plant of a different variety.

A shrub with good access to sunlight is taller than other shrubs located in shaded areas.
A shrub with good access to sunlight is taller than other shrubs located in shaded areas.

The adult offspring of a pair of deer is shorter than its parents and obtained fewer nutrients when it was younger.

Answer 7

The example that best describes the influence of genetic factors is: "The adult offspring of a pair of deer is shorter than its parents and obtained fewer nutrients when it was younger."