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Georgia [21]
3 years ago
5

WILL GIVE BRAINLIEST IF CORRECT! I NEED HELP

Biology
1 answer:
aleksley [76]3 years ago
3 0
Unconformities is number 4
principles of originally horizontally is number 3
law of superstition is number 2
principles of cross-cutting relationships is number 1
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Compare the movement of oxygen and carbon dioxide across the cell membrane. (4 marks)
lana66690 [7]

Answer:

Molecules naturally disperse from areas of higher concentration to lower concentration.

As oxygen-rich (and carbon dioxide-poor) blood travels by a cell the oxygen diffuses through the cell membrane to the area of lower concentration inside the cell. It can do this easily because the oxygen molecule (O2) is very small and has no charge or polarity. The oxygen is used up rapidly by mitochondria. This rapid consumption causes oxygen to constantly move into the cell from the blood.

The mitochondria creates carbon dioxide (CO2) as a waste product of cellular respiration (the process that makes energy for your body). Because the CO2 is of a higher concentration in the cell than in the blood passing by, this gas continually diffuses out of the cell. It too is small and uncharged so it can pass through cell membranes easily.

These movements require no energy (in the form of ATP) on behalf of the cell.

Explanation:

3 0
3 years ago
Which list puts the following things in correct order from smallest to largest?
Dahasolnce [82]
B. Solar system galaxy universe Earth
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3 years ago
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Part C: Specify Your Requirements
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Answer:d) Construct a 95 percent confidence interval on the mean shaft diameter. ... troublesome cosmetic defect, flow lines, in the finished housing. ... (c) Based on your answer to part (b) conduct another analysis of the failure time data and draw ... Three different washing solutions are being compared to study their effectiveness ...

Explanation:

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3 years ago
Antibodies are produced when the body is exposed to
Yuri [45]


Antibodies are produced when the body is exposed to a pathogen. Antibody production is a function of the specific immunity arm of the immune system.

During the first encounter with a  pathogen, antibody production against that pathogen is  a  bit slow and not very vigorous. However, memory of that pathogen is kept in memory cell which are a type of lymphocyte.

On a second encounter with the same type of pathogen, the immune system specifically remembers the pathogen and the response this time round is faster,  very vigorous, specific and  very effective.

Vaccines follow this principle, making good use of immune memory.


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3 years ago
Give three differences between an egg and a typical plant cell
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A plant cell can make their own food eggs can not do that, a plant cell has one singular vacuole while eggs have many small ones, and plant cells have a cell wall and membrane
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4 years ago
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