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ch4aika [34]
2 years ago
15

What does the half life of an isotopolis scientist to determine

Biology
1 answer:
IRINA_888 [86]2 years ago
4 0
The half life of a radioactive isotope is the amount of time it takes for half of the isotopes to decay. However, you do not need to wait the whole half life to measure decay

I’m pretty sure:) hope this helps
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Why does vineger and baking soda react.
Luba_88 [7]
The carbon dioxide escapes, and bubbles forth as a gas. Baking soda and vinegar react<span> with each other because of an acid-base </span>reaction<span>. </span>Baking soda<span> is a bicarbonate (NaHCO3) and </span>vinegar<span> is an acetic acid (HCH3COO)</span>
5 0
3 years ago
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The ileum contains ________ that project into the lumen and increase the amount of surface area.
Ivanshal [37]

The ileum contains villi that project into the lumen and increase the amount of surface area.

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3 years ago
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Find the unit rate with the second given unit in the denominator.
Kobotan [32]
First, the unit is words per minute, not the other way round because you're interested in how fast people can type, not how much time passes for every number of words they write or read (that would be minutes per word)

now, we know they do 4200 in 60 minutes. 

we need to divide 4200 by 60- first,\frac{4200}{60} = \frac{420}{6} = \frac{21}{3} =70

so the answer is, 70 words per minute

I think you made a typo in your answer and you meant 4600 instead of 4200 - then the answer is <span>C. 76 2/3 word/min</span>
6 0
3 years ago
HELP PLEASE ITS MULTIPLE CHOICE
lidiya [134]

Answer:

D

Explanation:

3 0
3 years ago
What functions do proteins perform in the cell membrane?
kumpel [21]

Answer:

A) they help transport some substances through the membrane.

Explanation:

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On the other hand, carrier transport proteins of the membrane bind to the substances present at one side of the membrane and deliver them to the opposite side.

4 0
3 years ago
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