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alexira [117]
3 years ago
11

What is the purpose of including a control group in an experiment

Biology
1 answer:
antoniya [11.8K]3 years ago
4 0

Answer:

it is important to have a control in a experement because you need something to compare to and see the changes.

Explanation:

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The word “cumulative” means that something builds on itself. Which example best shows how scientific knowledge is cumulative?
adell [148]

Answer:

B

Explanation:

Cumulative means that someone came up with an idea first and someone later built an idea off of that.  Kepler basing his laws off of Newton's laws is the only option that uses cumulative knowledge.  Everything else is either completely independent or working together neither of which is cumulative.

5 0
3 years ago
ANSWER FIRST AND YOU GET BRAINLST
iogann1982 [59]

Answer:

Nonrenewable resources are used to help provide humans with the energy they need to power their homes, cars, and Fourth of July barbeques. They're an important part of the worldwide economy because they're some of the most common ways we get the energy we need to power our lives.

Explanation:

7 0
3 years ago
Who is most likely to perform a forensic autopsy?
babymother [125]

Answer:

The forensic autopsy is preformed by "Forensic pathologist".

Explanation:

The forensic pathologist would perform a forensic autopsy, Forensic pathologist will focus on the cause behind the death by studying the body or the corpse. Most probably they do the postmortem examination. The forensic pathologist is also a medical doctor, who must have completed the training in anatomical pathology with specialization in forensic pathology. The forensic pathologist are basically there to find the cause and also the manner of death. They are trained for performing autopsy, helps in evaluation of historical and law enforcement investigative information, documentation in sexual assault, helps in collection of the medical evidence.

3 0
3 years ago
Which organic molecules are nucleic acids
Lostsunrise [7]
I think it may be this but not quite sure

Lipids are primarily hydrophobic in nature, but there are a large variety of lipids such as fatty acids, mono-, di-, and triglycerides, for example (check wikipedia for more examples). 

<span>Proteins are polymers of amino acids. </span>

<span>Nucleic acids are polymers of nucleotides.</span>
4 0
3 years ago
Saltwater fish constantly drink water but still excrete concentrated urine to compensate for the water loss. They also have gill
Dmitrij [34]

Answer:

The above paragraphs describes that how salt- and fresh-water fish regulates their osmoregulation. Hence, the correct answer would be c. have adapted to deal with osmosis.

Osmosis is the process by which solvent's molecule move from region of low concentration (hypo-tonic) to the region of high concentration (hyper-tonic) through a semi-permeable membrane.

In sea-water fishes, the body fluids are hypo-tonic to the surrounding water and thus water is kept moving out of their gills. In order to prevent the excess water loss they need to drink water constantly and excrete concentrated urine.

In contrast, fresh-water fishes body fluids are hyper-tonic to surrounding water and hence, water keeps entering in their body through gills. So, in order to prevent excess dilution they absorb salt from surrounding with the help of gills and also their bodies reabsorb salt from urine.

3 0
3 years ago
Read 2 more answers
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