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 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 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, each species for one week at a time for four consecutive weeks.
O 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.
The statement that best 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 for a week under the same conditions and finds journal articles that describe the growth rates of each species.
1.05, 1.2, 1.15, 1.2, 1.4.
Calculate the average weight of the kittens, in pounds.
(1 point)
O 1.3
O 1.0
O 1.2
O 1.15
To calculate the average weight of the kittens, you need to find the sum of the weights and divide it by the number of kittens.
1.05 + 1.2 + 1.15 + 1.2 + 1.4 = 5
Divide the sum by 5 (the number of kittens):
5 / 5 = 1
The average weight of the kittens is 1 pound.
So, the correct answer is:
1.0
Which sentence most accurately describes the daily growth rate of plants?
sum of individual plant heights divided by number of days
O average change in plant height divided by number of days
O average plant height divided by total number of plants
O sum of individual plant heights divided by total number of plants
The sentence that most accurately describes the daily growth rate of plants is:
Average change in plant height divided by number of days
Which example best describes the influence of genetic factors? (1 point)
O 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.
OA shrub with good access to sunlight is taller than other shrubs located in shaded areas.
O The adult offspring of a pair of deer is shorter than its parents and obtained fewer nutrients when it was younger.
A com plant is the same height as another corn plant of a different variety.
The example that best describes the influence of genetic factors is:
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.
In which situation would a snake be expected to have the largest size?
O lots of space, inadequate food
O lots of space, large supply of food
O restricted space, inadequate food
O restricted space, large supply of food
A snake would be expected to have the largest size in the situation of having:
Lots of space, large supply of food.
Which experimental procedure would provide the best evidence for the effect of light on plant growth? (1 point)
Plant seeds of the same variety in the same conditions and vary only the amount of light, then measure plan
O Measure plants receiving different amounts of light in their natural environments.
O Measure plants of the same variety grown in environments that receive different amounts of light.
O Plant seeds in different soils and expose them to different amounts of light, then measure plant growth.