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Zolol [24]
3 years ago
13

Why do some investigations require a control?

Biology
2 answers:
avanturin [10]3 years ago
4 0
To be able to compare the results to a sample without any of the independent variable added.
telo118 [61]3 years ago
4 0

Some investigation require control such that they can be able to compare results to a sample even without any of the independent variable which is being added.

Investigation is the act of investigating someone or something. Investigation can work for private investigator. There are different types of investigation. For example, Griffin investigation, Criminal investigation department, Federal Bureau of investigation.

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A period in history in which humans transitioned from hunting and gathering food to farming of plants and animals.
serg [7]

Answer: the Neolithic period

Explanation:

A period in history in which humans transitioned from hunting and gathering food to the farming of plants and animals is called the Neolithic period. People were starting to become farmers and their life got more settled.

This transition is also known as the Neolithic Revolution or the Agricultural Revolution.

8 0
3 years ago
A pregnant 16 year old has a fractured leg after being hit by a car. You explain to her that her leg needs splinting and she agr
Rama09 [41]

Answer:

Minors

Explanation:

because she's under the age of 18 and it 21 in some states

8 0
4 years ago
Which best describes the purpose of the European Union?
Alexxandr [17]
"To help foster peace and economic collaboration among European nations" is the one among the following choices given in the question that <span>best describes the purpose of the European Union. The correct option among all the options that are given in the question is the first option or option "A". </span>
4 0
4 years ago
In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. If a red-eyed heterozygous f
iris [78.8K]
The correct answer is Rr and rr.

F1:    Rr x rr
F2:   Rr Rr rr rr
F1 is the first generation, parents
F2 is the possible genotypes fo offspring
It means that there is 50%possibility for heterozygous (red eyed) and 50% for homozygous (sepia eyed).

3 0
3 years ago
True or false? If you did not control variables in a experiment, there would be no way to know which variable explained your res
Mars2501 [29]
This answer is True.
6 0
4 years ago
Read 2 more answers
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