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zloy xaker [14]
3 years ago
9

In what direction does blood flow through the heart? a) from ventricles to atria b) from a region of high pressure to a region o

f low pressure c) from a region of high oxygen content to a region of low oxygen content d) from a region of high volume to a region of low volume
Biology
1 answer:
Sauron [17]3 years ago
3 0

Answer:

b) from a region of high pressure to a region of low pressure

Explanation:

Blood flow is measured in blood volume per unit time. It is the movement of blood through an organ, tissue or vessel. It is initiated when ventricles in heart contract leading to its ejection at high pressure. Major arteries receive this blood and they further transport it at high pressure to smaller arteries, arterioles and capillaries. Hence arteries have thick walls to withstand this pressure. The pressure decreases when blood reaches to veins hence their walls are not that thick.  Hence, blood flows from a region of high pressure to a region of low pressure.

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Answer:

Option B

Explanation:

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(01.04 mc)water at about 4°c (39°f) is more dense than water at 0°c (32°f). why would the living organisms in the lake die if th
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4 years ago
When does the exponential growth of a population stop?
Maurinko [17]

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d or a im not completly sure

Explanation:

8 0
3 years ago
A number of antibiotics attack prokaryotic protein synthesis, but not eukaryotic protein synthesis. Name two common antibiotics
Rus_ich [418]

Answer:

Streptomycin and Erythromycine.

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Streptomycin does not stop protein synthesis in eukaryotic cells because it does not bind to eukaryotic ribosomes.

<u>Erythromycine:T</u>he Erythromycine inhibits  protein synthesis through interference with the binding 50s subunit ribosome.

Erythromycin does not estop protien synthesis in eukaryotic cells because it does not binds to eukaryotic ribosome.Specificity towards prokaryotes relies upon the absence of 50S ribosomes in eukaryotes.

 Antibiotics block processes that occur in prokaryotic cells but not in eukaryotic cells that's why they not affect ekaryotes.

Explanation:

Antibiotics are simply chemicals that kill prokaryotic cells but do not harm eukaryotic cells. They are natural chemicals produced by fungi and bacteria that act to control their bacterial competitors.

Antibiotics block processes that occur in prokaryotic cells but not in eukaryotic cells that's why they not affect eukaryotes.

There are different classes of antibiotics inhibit different steps of prokaryotic life cycle.

<u>Streptomycin and Erythromycin </u>are group of antibiotics that inhibit protein synthesis of bacteria.They are specifically effective against prokaryotes does not inhibit protien synthesis of eukaryotes.

3 0
3 years ago
From the provided choices, which color of light does the pigment chlorophyll absorb the most?
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so therefore, it’s blue
8 0
3 years ago
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