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Elis [28]
3 years ago
14

What happens first when a star begins to run out of fuel

Biology
2 answers:
Mamont248 [21]3 years ago
8 0
A) The stars core shrinks
The star will contract under the weight of gravity.
When it contracts it will heat up and expand to a red giant.
When the star runs out completly of helium it would emit gasses and form a star nebula.
It would then become a white dwarf then into a black dwarf.
Triss [41]3 years ago
7 0

Answer:

<em><u>A</u></em>

Explanation:

<u>the answer is A) the stars core shrinks</u>

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Phenotypes are the physical characteristics that result from the genotype, which is the genetic makeup of the organism. In this case, either straight hairline or Widow's peak will be the phenotype, as they are the physical characteristics being discussed.

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So for the WW genotype, we are going to see the dominant phenotype: Widow's peak.

For the Ww genotype, we are also going to see the dominant phenotype since the dominant allele is going to mask the presence of the recessive allele, so we are going to see: Widow's peak.

Lastly, for the ww genotype, we are going to now see the recessive phenotype, since both alleles are recessive: straight hairline. Note that their are two of these type of offspring as stated in the question.

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<em><u></u></em>

Explanation:

Hope this help

Have a wonderful day!!!

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