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lidiya [134]
3 years ago
13

1What do we call an environment free of bacteria? sterlle clean empty Infected

Biology
1 answer:
vodomira [7]3 years ago
7 0

Answer:

sterile

Explanation:

sterile means free from micro-organisms

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What are nodes, internodes, apical buds, & axillary buds?
xxMikexx [17]
Axillary buds are found at the insertion point of leaves and lateral branches in the nodes and give rise to lateral branches and flowers. Internodes are the stem regions between nodes. They lack lateral organs. It can be said that the stem is made up of nodes, internodes and axillary buds tidily arranged.
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2 years ago
A child was exposed to a disease-causing virus (most likely chicken pox from the Varicella zoster virus) when he was 5 years old
STatiana [176]

Answer: What is expected to happen is that the secondary immune system acts immediately against the virus.

Explanation:

When a virus first enters our body, in order to defend itself, the body must first recognize what the antigen is in order to fight it through <u>antibodies</u>. Once it does it will keep a memory of it that it can use if this virus enters the body again. <u>This will be done through the secondary immune system</u>.

As the body already recognizes the antigen, it knows how to fight it immediately, generating a thousand times the amount of antibodies generated the first time.

Thanks to its memory cells, the virus will remain much less time in the body.

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3 years ago
Use the principles of diffusion to explain why oxygen molecules in the tissues of the lung go into the blood
Keith_Richards [23]

Answer:

Oxygen molecules in the tissues of the lung diffuse into the blood because the concentration of oxygen in the lung's tissues is more than the concentration of oxygen in the blood.

Explanation:

Diffusion is the movement of molecules from the region of higher concentration of the molecule to the region of lower concentration of the same molecule. Molecules in diffusion move <em>downward the concentration</em> <em>gradient</em> created by difference in concentration between two regions until an <em>equilibrium (equal concentration in the two regions)</em> is established.

Oxygen molecules diffuse into the tissues of the lung when an organism breathes-in during the process of breathing. The molecules in the now oxygen-rich tissues eventually start diffusing into the blood in the lung because the blood passing through the lung is always de-oxygenated or has lower oxygen concentration compared to the tissues of the lung.

Oxygenated blood moves into the heart, pumps round the body by the heart, gets depleted of oxygen and eventually find its way back to the lung where the process is repeated.

Diffusion of oxygen from the tissues of the lung into the blood will keep happening as long as oxygen keeps getting dissolved into the lung's tissues and an equilibrium is yet to be established between the tissues and the blood.

8 0
3 years ago
What serious illness currently<br> in the news has underwent a<br> mutation?
murzikaleks [220]

Answer:

C0vid

19 I'm guessing

Explanation:

4 0
3 years ago
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Proteins of smaller molecular size may be reabsorbed from the glomerular filtrate by the specific transport process of _________
Lesechka [4]

Proteins of smaller molecular size may be reabsorbed from the glomerular filtrate by the specific transport process of endocytosis.

<h3>What do you mean by Glomerular filtrate?</h3>

The Glomerular filtrate may be defined as the liquid in the lumen of the Bowman's capsule of the nephron that has been purified from the capillaries of the glomerulus.  

The small molecular size proteins may be absorbed from the glomerular filtrate by receptor-mediated endocytosis. Then moved into the endosomes, and finally to the lysosomes for the degradation.

Therefore, proteins of smaller molecular size may be reabsorbed from the glomerular filtrate by the specific transport process of endocytosis.

To learn more about Nephron, refer to the link:

brainly.com/question/832244

#SPJ1

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2 years ago
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