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Sergio [31]
3 years ago
15

What component of membrane contains a hydrophobic region and acts as the primary barrier to most foreign substances?

Biology
1 answer:
KengaRu [80]3 years ago
5 0
Phospholipid bilayer is the <span>component</span> of membrane contains a hydrophobic region and acts as the primary barrier to most foreign substances.
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what is a possible consequence of climate change to species that have a narrow temperature tolerance range (not bio it's environ
kap26 [50]
Answer: Possible consequences of climate change to species that have a narrow temperature tolerance range are extinction, change in migratory patterns, and decreased population.
5 0
3 years ago
A normal man and normal woman marry. What is the chance that they will produce a male child with Down's syndrome?
nikitadnepr [17]

Answer:

The chance of a normal couple having a child with down syndrome is 1 to 600 births.

Explanation:

Down syndrome is a genetic flaw that occurs when the fetus is being formed.

A human cell considered normal has 46 chromosomes, divided into 23 pairs. For some unknown reason, an error may occur at the beginning of embryonic development and an extra chromosome is created, which binds to par 21. The result is cells with 47 chromosomes. This causes the said syndrome.

It is important to know that this failure happens at random. It is nobody's responsibility. It has not been proven to date that lifestyle, actions during pregnancy, smoking, drinking, medicines, environmental factors or kinship between the couple can influence this occurrence. She is not contagious either. The likelihood of a normal couple having a child with the syndrome is approximately 1 to 600 births.

8 0
3 years ago
Jane Swenson has been suffering from a cold for about a week and has missed 3 days of work. She decides to return to work at the
sveticcg [70]

Jane can do a few things to prevent the spread of illness:

- Avoid coughing on others

- Keep a good distance away from those who are not sick

- Sanitize regularly

- Use a tissue for runny nose

Hope this helps

8 0
3 years ago
Jenner's successful use of cowpox virus as a vaccine against the smallpox virus was due to the fact that ______. (A) the cowpox
irinina [24]

Answer: option C) cowpox and smallpox are caused by the same virus

Explanation:

Cowpox is a skin disease that affects cattle. It is caused by an Orthopoxvirus, with lesions occurring principally on the udder and teats of the animals.

Human infection may occur from touching infected cows, and thus giving immunity to smallpox (an acute infection caused by the same poxyvirus, in HUMANS)

So, Jenner's successful use was because cowpox and smallpox are caused by the same virus

3 0
3 years ago
What is it called when the atmosphere absorbs things and it goes into the clouds?
pochemuha

I believe the answer you're looking for is:

Condensation- If the air cools, then water vapor molecules slow down and some can not remain a vapor. They cluster in the air to form tiny liquid droplets. This is called condensation. In clouds, the liquid droplets formed by condensation are small and light enough that they stay in the air.

<em>hope this helps! :)</em>

5 0
4 years ago
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