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Pani-rosa [81]
3 years ago
6

Which data table describes the Sun?

Biology
1 answer:
Inessa05 [86]3 years ago
5 0

B.   Composition mostly hydrogen and helium gas  Mass 1.989 × 10³⁰ kg

Explanation:

The best data that describes the sun is that it's composition is made up of mostly hydrogen and helium gas with a mass of about 1.989 x 10³⁰kg.

  • The sun is the largest body in our solar system and all planetary bodies revolves round it.
  • At the core of the sun, nuclear fusion is occurring.
  • Here, small atomic nuclei combines into larger ones with the release of a large amount of energy.
  • The small nuclei are hydrogen and they produce helium.
  • This process produce energy for the whole solar system.
  • The sun is best defined as giant hot ball of gases.

Learn more:

Sun's energy brainly.com/question/1140127

#learnwithBrainly

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Colored aleurone in the kernels of corn is due to the dominant allele R. The recessive allele r, when homozygous, produces color
Pie

Answer:

The genes are linked, and the arrangement is coupled (one homolog has both dominant alleles; the other homolog has both recessive alleles).

RY / ry

Explanation:

R_= colored aleurone

rr= colorless aeurone

Y_= green plant

yy= yellow plant

They do a testcross between a plant of unknown genotype and phenotype and a plant that is homozygous recessive for both traits (yr/yr) the following F1 is obtained:

  • 88 Colored, green (RY/ry)
  • 92 colorless, yellow (ry/ry)
  • 8 colorless, green (rY/ry)
  • 12 colored, yellow (Ry/ry)

If the genes assorted independently, all of the possible offspring phenotypes would appear in the same frequency. However, they obtained 2 phenotypes much more abundant that the other two. Since recombination is a rare event during crossing over, when two genes are linked the recombinant gametes are produced less frequently than the parentals.

We can propose that the phenotypes Colored, green (RY) and colorless yellow (ry) are the parental gametes, and the unknown plant has the arrangement RY/ry, with both genes linked.

6 0
3 years ago
Which of the following are supported by many
Romashka [77]

Answer:

laws.

Explanation:

hypothesis is an educated guess

therous are ideas

and laws are supported by observations. like newton's law.

7 0
3 years ago
What region of the diencephalon is responsible for maintaining homeostasis?
Orlov [11]

Answer:

The correct answer is A. The region of the diencephalon that is responsible for maintaining homeostasis is the hypothalamus.

Explanation:

One of the main functions of the hypothalamus is to control the pituitary gland, an endocrine gland that participates in the regulation of various functions of the organism, many of them related to homeostasis (regulation of glycemia, osmolarity, etc).

6 0
3 years ago
Which of the following processes is used to bake breads?
Marina86 [1]

Answer:

either the first one lactic acid fermentation or the third one alcoholic fermentation

8 0
3 years ago
Unidirectional flow in the heart is ensured because the heart contains ___________.
jekas [21]
<span>Unidirectional flow in the heart is ensured because the heart contains valves that prevent backflow.

These valves keep the flow of the heart going in one direction (hence the name "unidirectional").</span>
3 0
3 years ago
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