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2 years ago

Which of the following must be met for a scientifically valid sample? Subjects are selected:

Biology

2 answers:

ddd [48]2 years ago

6 0

Answer:

The correct answer is: A. and D.

Explanation:

In order to scientifically validate a sample, it is necessary that,

The entire population under study should be considered to obtain an average or a mean data. If only a part of the population is considered then the result obtained would be a biased one. A biased data will not represent the entire population and so it would be incorrect.
The sample choice done must be at random covering all the areas of the population to get the accurate result. This is because random selection lowers the possibility of getting biased.

amid [387]2 years ago

3 0

Answer:

A. and D. For apex :) good luck

Explanation:

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In which situation would it be least likely for a scientist to revise her experimental methods?

Marina86 [1]

Answer:

the least likely situation out of those listed here for a scientist to revise her experimental methods, would be if her results support her hypothesis. In this instance, the outcome of the experiment positively provides evidence that the original hypothesis is correct, and the experiment would therefore be a success and not necessarily require repeating.

Explanation:

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2 years ago

What limitations will there be to building an eco-friendly home in this neighborhood? consider social, financial, and climate co

Anastaziya [24]

The limitations in designing and building an eco-friendly home in Illinois will be climate constraints and social limitations.

<h3>What are eco-friendly homes?</h3>

Eco-friendly homes are homes which are designed such that they do not pose any danger to the envrionment.

Eco-friendly homes are compatible with the environment and make use of available environmental resources to design an environmental-friendly home.

The limitations in designing an eco-friendly home in Illinois will be:

Climate constraints - due to hot climatic conditions
Social constraints - due to its dense population

Therefore, the limitations in designing an eco-friendly home in Illinois will be climate constraints and social limitations.

Learn more about eco-friendly homes at: brainly.com/question/10152622

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1 year ago

Name two examples of inorganic materials that allow for primary succession:

Ilya [14]

Answer:

Areas where lava recently flowed, a glacier retreated, or a sand dune formed.

Explanation:

I don't know if this'll help you, but I think that should be somewhat about primary succession.

4 0

1 year ago

Which of the following is an example of the strength of hydrogen bonds in water?

butalik [34]

The answer is B because when hydrogen is separated from O2 it soluble

4 0

2 years ago

true or false? to make a person breathe in, the volume of the chest cavity must decrease, creating a higher pressure in the thor

faltersainse [42]

The thorax is a very vital and important organ in the human body.

It is a structure that serves as a protective covering for organs in the body such as the lungs, the heart, some vital blood vessels e.t.c

It is false that to make a person breathe in, the volume of the chest cavity must decrease, creating a higher pressure in the thorax.

When a person breathes in, the chest cavity expands (the volume increases) and the pressure in the thorax decreases.

When a person breathes out, the chest cavity decreases in size, and the pressure in the thorax increases.

Therefore, we can see that the process of breathing in humans, follows the principle of Boyle's Law.

Boyle's law states that as the volume increases there is a decrease in pressure and as the volume decrease there is an increase in pressure.

Therefore, It is false that to make a person breathe in, the volume of the chest cavity must decrease, creating a higher pressure in the thorax.

To learn more, visit the link below:

brainly.com/question/24359876

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2 years ago