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weeeeeb [17]
3 years ago
10

What is polarity? Describe the polarity of water.

Biology
1 answer:
malfutka [58]3 years ago
3 0
Water, which not only dissolves many compounds but also dissolves more substances than any other liquid, is considered the universal solvent. A polar molecule with partially-positive and negative charges, it readily dissolves ions and polar molecules. Hopefully this helped :D
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Describe and explain how blood flows from the foot to the lungs.
Natali5045456 [20]

Answer:

lungs:

The blood first enters the right atrium.

The blood then flows through the tricuspid valve into the right ventricle.

When the heart beats, the ventricle pushes blood through the pulmonic valve into the pulmonary artery.

The pulmonary artery carries blood to the lungs where it “picks up” oxygen.

It then leaves the lungs to return to the heart through the pulmonary vein.

The blood enters the left atrium.

It drops through the mitral valve into the left ventricle.

The left ventricle then pumps blood through the aortic valve and into the aorta. The aorta is the artery that feeds the rest of the body through a system of blood vessels.

Blood returns to the heart from the body via two large blood vessels called the superior vena cava and the inferior vena cava. This blood carries little oxygen, as it is returning from the body where oxygen was used.

The vena cavas pump blood into the right atrium and the cycle begins all over again.

6 0
1 year ago
Which antibiotic was not effective against E. coli? neomycin, penicillin, erythromycin, ampicillin
qaws [65]

The antibiotic called ampicillin was not effective against E.coli.

Answer: D

Explanation:

E.coli is normal microbial flora which is present in the gut of the mammals.

It is gram negative bacteria and very few strains of this bacteria causes harm.

Antibiotics are the chemical drugs which are used to treat the microbial infection either by killing the causative organism or by its growth inhibition.

Antibiotics such as neomycin, penicillin and erythromycin are usually used to treat E.coli infection.

Antibiotic such as Ampicillin is not used as the bacterium E.coli is highly resistant to it.  

6 0
3 years ago
Which of these is most likely to produce radioactive wastes?
Vlad1618 [11]
A. a nuclear power plant
7 0
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Which situation is a long-term effect of the industrial revolution?
vodka [1.7K]
Everything we have today is because of the industrial revolution
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Answer:

Leydig cells

Explanation:

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