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defon
3 years ago
15

If scientists determine the age of a rock to be three billion years old, what else do they know? A) the rock came from outside t

he solar system B) the rock was part of a comet C) the Earth is at least three billion years old D) the Earth is younger than three billion years old
Biology
2 answers:
Burka [1]3 years ago
8 0
I think it might be C.
jonny [76]3 years ago
5 0
C) the earth is at least billion years old

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Explanation:

Neutron is zero because neutron

Nnumber =atomic no - mass no so 1-1=0.

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3 years ago
What is it called when two forms of a trait are both dominant at the same time?
KatRina [158]

Answer:

Codominant alleles or Incomplete dominance.

In codominance, the results are mixed, and both show. Incomplete dominance is when the results blend (red + white flower = pink flower)

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3 0
3 years ago
If a cell has made extra copies of itself but then they divide in half , the first copy gets DNA but the second doesn't. What el
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When a new cell is created, it must have the same library of genetic information all other cells in the body have access to. Because all the material in the new cell must come from the first cell, the original cell must make a copy of its DNA before completing the process of mitosis. These two sets of DNA only exist for as long as it takes the cell to undergo mitosis, which can be anywhere from 30 to 90 minutes in certain human cells. When the cell division is complete, both of the cells have a single identical copy of DNA.
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When salt is dissolved in water water is the <br><br> Solution<br> Solvent<br> Solute
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