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AfilCa [17]
3 years ago
5

Why are stem cells from human embryos used to treat some diseases??

Biology
1 answer:
Kitty [74]3 years ago
7 0
They can repair damaged immune systems and they make replacement heart valves.
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What is meant by the following statement? The cell membrane is semipermeable. A. The membrane allows all polar molecules into th
Gennadij [26K]

I believe the correct answer would be B.  Semipermeable means that it allows certain substances to pass through, and certain other ones to not pass through.  So given all of your options, I would say that B makes the most sense.  Hope this helped!

-TTL

7 0
3 years ago
Describe how a cuticle could have evolved through natural selection
Kobotan [32]
For you to understand the process we can say that the weak will die. If the animal or organism can't get food or find any it is naturally "selected" to die.So a Cuticle could have evolved like that. Hope tgis is useful 
3 0
3 years ago
Why is 2 the correct answer to number 16 ? Explain why please and answer this !!
marta [7]

an egg cell has a haploid nucleus so it has half the number of dna because it fuses with a sperm cell to have the full amount of dna.

an egg cell has 23 chromosomes and a sperm cell has 23 chromosomes.

they both have half the amount of dna to form a zygote

5 0
3 years ago
Which activities of the body are controlled by the autonomic nervous system?
bearhunter [10]

Explanation:

The autonomic nervous system controls internal body processes such as the following:

Blood pressure

Heart and breathing rates

Body temperature

Digestion

Metabolism (thus affecting body weight)

The balance of water and electrolytes (such as sodium and calcium)

The production of body fluids (saliva, sweat, and tears)

Urination

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6 0
3 years ago
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stealth61 [152]

Answer:

It appears to be the most psychologically exhausting to individuals.

Explanation:

Related to the other options:

Relationship conflict is almost always a dysfunctional conflict.

Process conflict is another type of conflict and it is about how the work gets done.

Commonly, relationship conflict is a significant reason for psychologically exhausting to individuals due to stress.

8 0
3 years ago
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