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Rama09 [41]
3 years ago
6

In a scientific experiment, the control group is the one that

Biology
1 answer:
nikdorinn [45]3 years ago
4 0

Answer:

B. is not manipulated and used for comparison

Explanation:A control group is merely a group placed on an experiment for comparing with the experimental group. The control group will receive no treatment and serves as a reference to measure the reactions of the subjects present in the group being tested.

The use of a  control group is necessary for an experiment since the experiment has variables being tested and some other factor may arise in the carrying out of the experiment, that previously was not taken into account. It allows then to eliminate also non-essential variables.

Then researchers can make sure the hypothesis, remaining all variables the same for the tested groups will enable to measure the independent variable and see if this variable is to be held accountable for the results as the outcome of the research.

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Groundwater contaminated by sewage from a ruptured septic tank can sometimes be naturally purified by flowing for a relatively s
Valentin [98]

Answer:

<em>The correct option is A) sandstone aquifer</em>

Explanation:

Groundwater can simply be described as water which is present inside the Earth's surface in structures called aquifers. Aquifers are materials which have an ideal porosity and permeability which allow water to flow through them. Aquifers  are materials like sand, silt or rocks.

Sandstone aquifers can trap waste particles like bacteria while allowing the water to easily flow. Hence, they can be used for sewage from a ruptures septic tank.

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3 years ago
Which statement does not apply to the human egg
andre [41]

Answer:

produced at one at a time.

Explanation:

human egg are not produced only at one time.

6 0
2 years ago
Discribe whether matter is reduced and how
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You can reduce the levels of matter pollution by reducing the amount of particulate matter produced through smoke and by reducing vehicle emissions. Reduce the amount of particulate matter produced through any types of smoke.
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___________ refers to the living parts of an ecosystem.​
almond37 [142]

Answer:

Living components...

Explanation:

5 0
3 years ago
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Movement of chromosome segment to a non-homologous chromosome. This type of chromosomal mutation occurs when one chromosome swap
Hitman42 [59]

Answer:

The correct answer is ''Translocation​.''  

Explanation:

Translocation is a chromosomal abnormality that is due to a change in position of a chromosomal segment to another non-homologous chromosome of the same nucleus or to another part of it. It is produced by the exchange of segments between two chromosomes without loss of genetic material is called reciprocal or balanced translocation, when it gives rise to monocentric chromosomes.Translocations can be detected cytologically because the structural heterozygote forms a quadrivalent (4-chromosome association) in meiotic prophase. Sometimes they can also be detected by changes in the size of the chromosomes if the exchanged segments are of different lengths.

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