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kozerog [31]
4 years ago
8

If you want to have a scientifically valid sample for a for a study you are doing, which of the following conditions must be met

? choose all that apply
A. A group that includes people who are convenient to use

B. A random sample

C. A sample that includes the population you are studying

D. A group of volunteers
Biology
2 answers:
Sholpan [36]4 years ago
8 0

Answer

B. A random sample

Explanation

In a experiment, a scientific evidence is the information obtained from scientific research which is objective and unbiased. Validity of the results occurs when it is possible to apply a conclusion drawn in the context of a scientific experiment to the general understanding. Control scenarios are necessary when testing the effects and impacts of results.


madam [21]4 years ago
5 0
I think the answer is c but I’m not completely sure
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Which term names catalysts that speed up chemical reactions in the human body?
Georgia [21]

Enzymes are catalysts that speed up chemical reactions in the human body.

<h3>What do you mean by Catalysts?</h3>

Catalysts may be defined as those substances that enhance the rate of chemical reactions without being consumed in them.

Enzymes are also considered as catalysts in the body of living organisms. Basically, enzymes are proteins that assist in the speeding up of any chemical reaction in living entities.

Therefore, enzymes are catalysts that speed up chemical reactions in the human body.

To learn more about Catalysts, refer to the link:

brainly.com/question/16781912

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4 0
3 years ago
You would expect leptin deficient mice to be __________.
Alina [70]

Answer: Option B.

Obese and over eating

Explanation:

A leptin deficient move would be obese and overeating because leptin is an hormone produced by fat cells that decrease appetite and when it is deficient in the body,the body assumes that there is no enough fat in the body and it send signals for intense hunger and overeating or uncontrollable eating of food which result in accumulation of fats, there by resulting in obesity.

6 0
3 years ago
Which plants produce leaves? (Select all that apply.) a. Gametophytes of bryophytes b. Gametophytes of seedless vascular plants
bixtya [17]

Answer:

a. Gametophytes of bryophytes

d. Sporophytes of seedless vascular plants

Explanation:

Bryophytes are non-vascular plants. The plant body is haploid gametophyte which is its dominant phase and bears sex organs. The gametophyte may be leafy as in moss and may be with thalloid as in liverworts.

Pteridophytes are seedless, true vascular plants. The plant body is the diploid sporophyte. The sporophyte is differentiated into true leaves, stem and roots.

6 0
3 years ago
How can scientists learn about the mantle if they cannot study it directly?
stellarik [79]
By asking it
Sinply ask
Thats why we were given a mouth
To use it
Or be built different
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Why does the the right testicle hang lower than the left?? PLease help i will be thank (Sorry english second language if your wo
Ber [7]

it is entirely normal for one testicle to be bigger than the other. Many people find that the right testicle is slightly larger and the left hangs lower. A difference in size is usually nothing to worry about, though it can occasionally indicate a problem.

This is perfectly normal and nothing to worry about. Either side may be slightly larger or hang lower. But be sure to tell a parent (who will let your doctor know) if you have any pain, swelling, or lumps in your testicles.

When a vein in a testicle becomes enlarged, it's called a varicocele. Varicoceles affect up to 15 percent of males. Like varicose veins in your legs, varicoceles may appear bulgy under the skin of your scrotum. They tend to form in the left testicle because the vein on the left side hangs lower.

7 0
3 years ago
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