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vagabundo [1.1K]
3 years ago
7

3.

Biology
2 answers:
snow_tiger [21]3 years ago
4 0
True and False depending on what type of evidence their trying to gather. Hope that helps
Anon25 [30]3 years ago
3 0
False, PCR is not a several day long process to my knowledge.
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If this person had son,what,sex chromosome did they give their son?
dybincka [34]

Answer:

B

Explanation:

Y chromosomes are the male chromosome. A person with an XY sex chromosome pair will be male while that with an XX sex chromosome pair will be female. This is because the Y chromosome has a male-determining gene called the SRY. This gene is responsible for the development of testis.

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3 years ago
What happens to most of the nitrogen in a plant when the plant dies?
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Most of it follows its cycle, going back to the atmosphere.

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8 0
3 years ago
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According to biochemist sidney fox, once amino acids formed in the oceans, they may have collected in small pools to form small
Blizzard [7]

Formed tiny polypeptides known as Proteinoids when they gathered in little pools.

<h3>What is a polypeptide and how does it work?</h3>

Polypeptides. By joining many amino acids together, polypeptides contribute to the creation of proteins. When two or more polypeptides are joined together to form a protein, the resulting structure is unique to that protein.

<h3>What conclusions did Sidney Fox's experiment reach?</h3>

In the 1950s, Sidney Fox demonstrated that when amino acids were splashed in hot, dry circumstances, they immediately polymerized into proteins. Other studies that used cyanide, clays, and heat to cause the polymerization of amino acids into proteins were effective.

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8 0
1 year ago
7. How did scientists determine the age of the ocean floor?
lara31 [8.8K]

Answer:

a. By Calculating magnetic reversals.

Explanation:

They determine the age of the ocean floor by examining magnetic fields in the planet Earth.

6 0
2 years ago
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.The inner membrane of mitochondria is folded because
Ivahew [28]

Answer:

The internal membrane known as the Cristae is collapsed. The folds of the inward layer or the Cristae give an expansion in the Surface Territory which gives the Mitochondrion more areas for ATP( the vitality cash) creation to happen

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