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PilotLPTM [1.2K]
3 years ago
11

Carlo is wondering what causes plants to grow at different rates. Carlo's hypothesis is "Plants will grow more when the day is l

onger." To test his hypothesis, Carlo sets up an investigation that includes an experimental and control group. What factor would remain constant in the control group?
Biology
1 answer:
Sphinxa [80]3 years ago
8 0

Options for the question have not been given. They are as follows:

type of soil

type of plants

exposure to sunlight

method for measuring the growth

Answer:

exposure to sunlight

Explanation:

A scientific experiment has an experimental group and a control group. Control group is included to omit any error in results due to the factors other than the variable factor. Experimental group is the one exposed to different levels of the variable factor.

Here, Carlo wants to determine the the effect of day length on plants' growth. The test variable here is thus the duration of sunlight. In experimental group, this duration will be changed to determine its effect. In control group it will be kept constant so that results from other factors can be excluded from the observed experimental result.

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