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Artyom0805 [142]
3 years ago
14

SPACE! What is a main sequence star? What event causes a star to leave the main sequence?

Biology
2 answers:
german3 years ago
6 0

Explanation:

The main sequence is a continuous and distinctive band of stars that appears on plots of stellar color versus brightness.

makvit [3.9K]3 years ago
5 0
A main sequence star burns through the hydrogen in its core, reaching the end of its life cycle. At this point, it leaves the main sequence. Stars smaller than a quarter the mass of the sun collapse directly into white dwarfs. When stars run out of hydrogen, they begin to fuse helium in their cores. This is when they leave the main sequence. High-mass stars become red supergiants, and then evolve to become blue supergiants. It's fusing helium into carbon and oxygen.
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If A is dominant allele, and a is recessive allel, than:

p is frequency of A allele, q is a frequency of a allele, p2 is a frequency of homozygous dominant genotype, 2pq is frequency of heterozygous genotype and q2 is frequency of homozygous recessive genotype.  

If the population is in Hardy-Weinberg equilibrium; p+q=1

p=0.15 q=1-0.15=0.85

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A mechanism that is effective in maintaining a normal glomerular blood pressure only if the systemic mean arterial pressure remains between 80 and 180 mm hg is called renal autoregulation.

<h3>What is renal autoregulation?</h3>
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3 0
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What is a common theme found amoung nonrewnable resources ?
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