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Savatey [412]
4 years ago
6

Data samples in which you expect no change to occur are_____.

Biology
1 answer:
mina [271]4 years ago
5 0
The answer is negative controls. These are groups where no phenomenon is probable. They ensure that there is no effect when there should be no effect. Where there are only two possible outcomes, e.g. positive or negative, if the treatment group and the negative control both produce a negative result, it can be concluded that the treatment had no effect. If the negative control group and the treatment group both yield a positive result, it can be inferred that a puzzling variable is involved in the occurrence under study, and the positive results are not only due to the treatment. In other examples, outcomes might be measured as lengths, times, percentages, and so forth.
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Food and bloodstains on clothes may contain proteins and fats. Explain how enzymes in biological washing powders act to remove f
Triss [41]

Explanation:

Enzymes would break down the protein and fat molecules when washed as some enzymes are designed to work in that type of atmosphere. Additionally, enzymes are also known as biological catalysts which means they speed up chemical reactions which are taking place. Hence, they help break down molecules that may be in food and in fats.

Hope this helps :)

6 0
3 years ago
How does the circulatory system interact with the digestive system
Serhud [2]
The small intestines give nutrients to the blood

8 0
4 years ago
Your son has not had the MMR vaccine (measles, mumps, rubella) because you are apprehensive about vaccines and their side effect
natali 33 [55]

Answer:E.

Explanation:The MMR mostly affects children and if not administered vaccine in time to save a respond that prevent subsequent reoccurence of infection, it will lead to severity of infection (secondary infection ) probably if resurfaced at adult stage.

7 0
4 years ago
Match the functional groups with their structures:
evablogger [386]
The true answer of your question is :

OH : HYDROXYL GROUP

NH2 : AMINO GROUP

CH3 : METHYL GROUP ( but in rather broader terms, that functional group of formula CnH2n+1 where n is an integer is called ALKYL GROUP where by substituting n by 1,2,3... we obtain methyl for n = 1, ethyl for n = 2, and propyl for n = 3 )

COOH : CARBOXYL GROUP is the correct answer since carbonyl is characterized by the presence of functional group C=O in general the formula of the compound would be
R-C=O-R’ where R and R’ are alkyl groups like methyl for example. However the carboxyl group could be thought of as a summation of carbonyl + hydroxyl ( CO + OH ) resulting thus in COOH.

I hope you’ll understand everything, anyway if not i’m always here to help. ♥️
7 0
3 years ago
A lizard is sitting on a rock on a cool, cloudy morning. As the day progresses, the sun comes out, and the temperatures of the r
Svetach [21]

Answer:

The lizard will have a higher metablolic rate and it will have a higher activity level

Explanation:

Fishermen use minnows as bate, the minnows are stored in cold water for slower metabolic rate and a lower acivity level so that the minnows can last longer. It is the opposite of the lizard question

4 0
3 years ago
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