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Alexandra [31]
3 years ago
10

A scientist is comparing the outer layer of an onion cell to the outer layer of a human skin cell. What is unique about the oute

r layer of the onion cell compared to the skin cell?
Biology
1 answer:
Gnoma [55]3 years ago
3 0

Answer:

The onion cell has a cell wall, unlike the human skin cell.

Explanation:

Only plant cells have cell walls.

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A woman has blood Type A, her baby has blood Type AB: Is it possible that a man who has the blood Type A could be the father? Sh
Wittaler [7]

Answer:

No, it is not possible

Explanation:

Humans use the ABO blood group system where the A and B alleles are dominant over allele O but codominant with one another.

This system is such that;

Type A can only have genotype: iAiA or iAi

Type B can only have genotype: iBiB or iBi

Type AB can only have genotype: iAiB

Type O can only have genotype: ii

According to this question, a woman has blood Type A (iAiA or iAi) and her baby has blood Type AB (iAiB). This means that the father definitely contributed the allele B in order to have a baby with type AB. It also means that, according to the question, IT IS NOT POSSIBLE FOR A "Type A" father to produce that baby (see the punnet square attached).

Note: The father must contain an allele B in his genotype i.e. the father must be either type B (iBiB or iBi) or type AB (iAiB)

7 0
2 years ago
Please help me?? 10 points!
boyakko [2]

Answer:

streak

Explanation:

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8 0
3 years ago
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In which procedure are eggs removed and fertilized with sperm outside the body before being transferred to the female uterus?
Advocard [28]

This procedure is called In Vitro Fertilization (IVF)

5 0
3 years ago
How do intrusive rocks form?
IgorLugansk [536]

!!•••••••☆☆ Hey mate ☆☆•••••••!!

Intrusive igneous rocks cool from magma slowly because they are buried beneath the surface, so they have large crystals.

Extrusive igneous rocks cool from lava rapidly because they form at the surface, so they have small crystals.

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3 0
3 years ago
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Determining Pioneer Species and Climax Communities Enrique examines a plant species to determine whether it could be a pioneer s
Svetllana [295]

Answer:

its A,B,E

Explanation:

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