Select all that apply: Which of the following affect(s) the half-life of a radioactive substance?

Biology

1 answer:

frutty [35]2 years ago

8 0

Answer:

The correct answer is option A, the type of isotope

Explanation:

The half life of a radioactive substance is a constant value and thus it is not affected by the temperature, catalyst or mass of the substance. Basically it is the time taken by a radioactive substance to reduce its mass by half of its actual value. Radioactive decay takes place only when the atomic nucleus becomes unstable and thus the isotope type is the only factor which affects the radioactive decay of any element.

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Expiratory reserve volume (ERV) You ask your lab partner to inspire a normal tidal inspiration, and breathe out a normal tidal e

Bumek [7]

The average expiratory reserve volume or ERV is 810.

<h3>What is expiratory reserve volume?</h3>

Expiratory reserve volume or ERV is the amount of air that is exhaled forcibly.
This can be measured using a spirometer and is used to detect restrictive lung diseases.
It is the maximum amount of air that can be exhaled after normal tidal volume is exhaled.
Respiratory volume is the volume of air which is either inhaled, exhaled or stored in your lungs.
The doctors estimate the reserve volume with the help of spirometer to determine some lung diseases.
Once diagnosed with a lung disease, spirometry is used to monitor it.
Here, 3 readings of ERV are taken, calculate the sum of the these and divide by 3 to calculate the average ERV.
ERV= (800+ 850+ 780)/ 3= 810

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1 year ago

What is the advantage of stopping mitosis at metaphase when making a chromosome spread?

Basile [38]

The chromosomes are in their condensed, highly coiled form, where they can easily fall without overlapping and staining will show a banding pattern.

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2 years ago

During the last century, human impacts on our

attashe74 [19]

Answer:

I would say B.

Explanation:

A would only fix biodiversity temporarily, until humans come and wipe them out again. C is just kind of impossible, and containing them could also be problematic. D is also unreasonable, and some animals would not be able to thrive in new ecosystems. B would help save the environment, which would save the animals, which would help biodiversity.

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Nataly [62]

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julsineya [31]

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2 years ago