In an experiment to determine the effects of radiation on the germination of seeds, a factor that has to be controlled is

a. the amount of radiation.

b. the types of radiation.

c. the germination rate of seeds.

d. the amount of water added to the seeds.

Question

Biology

Leilani Obrien

2 December, 13:23

In an experiment to determine the effects of radiation on the germination of seeds, a factor that has to be controlled is

a. the amount of radiation.

b. the types of radiation.

c. the germination rate of seeds.

d. the amount of water added to the seeds.

+3

Answers (1)

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Ian · Answer 1

A) is correct

because the experiment is based on radiations, not the type of radiations so it can't be b.

it can't be c because again, it's talking about the radiation

it can't be d because the water isn't an effect of radiations

(sorry for my english)

In an experiment to determine the effects of radiation on the germination of seeds, a factor that has to be controlled isa. the amount of radiation.b. the types of radiation.c. the germination rate of seeds.d. the amount of water added to the seeds.

In an experiment to determine the effects of radiation on the germination of seeds, a factor that has to be controlled is

a. the amount of radiation.

b. the types of radiation.

c. the germination rate of seeds.

d. the amount of water added to the seeds.