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SIZIF [17.4K]
3 years ago
14

MULTIPLE CHOICE QUESTION

Biology
1 answer:
Whitepunk [10]3 years ago
6 0
I think the answer is B 54 years
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Materials are able to move across a cell membrane through one of two methods: active transport or passive transport. What is the
zloy xaker [14]
Essentially the answer is in the names. Active transport requires energy to facilitate to movement of the materials while passive transport is something like osmosis which is when the material moves based on concentration in an effort to create equality between the two sides. Basically passive is when the materials move under the own power. 
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3 years ago
Like blood lymph flows both to and from the heart. <br> a. True <br> b. False
bezimeni [28]
False like blood lymph won't flow both to and from the heart

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A student wants to find out if the amount of bleach has an effect on stain removal.
Step2247 [10]

Answer:

The second option.

Explanation:

We're trying to test the amount of bleach that has an effect on the stain so that is the altered variable.

The 2nd option uses different amounts of bleach to clean the same amount of stain.

If you choose the other options, people can argue that the bigger stain would be harder to clean with one cup of bleach, whereas the small stain gets two cups or the other way around.

It's not an effective way to see if the amount of bleach has an effect on stain removal.

7 0
2 years ago
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What type of front is most likely to produce severe thunderstorms?
Simora [160]
The correct answer is cold fronts
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What substance is needed to begin the process of glycolysis?
MrRissso [65]
Glucose or fructose. In glycolysis, glucose is oxidized to be pyruvate. 
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