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d1i1m1o1n [39]
3 years ago
9

What forces hold a star together in stellar equilibrium

Biology
1 answer:
salantis [7]3 years ago
6 0
The force of gravity holds everything together, gravity compressed everything to the center.
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30.Of the following, which component of life is the largest?
ipn [44]

Answer: 30. D. Cell

31. A. Tissue

32. D. Biome

33. A. Population

34. D. Condensation

35. B. Precipitation

Explanation:

30. A cell is a largest component of life among the options given. As it includes within it molecule, and organelles required for the functioning and metabolism of cell.

31. A tissue is the smallest component of life. It is made up of group of cells. The cells combine together in tissue to perform a specialized function in organisms.

32. Biome is the largest ecological group which includes diversity of living organisms interacting with the physical environment. The biome is characterised by abiotic factors like climate, temperature, geography, and soil and also by the biotic factors such as flora and fauna.

33. Population is the smallest group which includes the members belonging to the same species living in the same location or region. These members are capable of inbreeding among themselves and producing viable offsprings.

34. Condensation is a process in which the water vapors being in high temperature cools down in the sky to form clouds. It is the part of water cycle.

35. Precipitation is the part of the water cycle. In this the clouds formed after the condensation process, due to increase in amount of water vapors in them the water falls off under the effect of gravity. The precipitation is in the form of sleet, snow, hail, drizzle and rain.

3 0
3 years ago
Oxidative damage to DNA can often result in the alteration of a single nucleotide.
Harman [31]

Answer:

Repair mechanism for base cleavage (BER)

Explanation:

Repair by base cleavage (BER)

The altered bases are specifically recognized by glycosylases and removed, generating an AP site. The hole is filled by a DNA polymerase that takes the healthy strand as a template. This system arises not only by exposure to external agents, but also by the cell's own activity.

In case of damage in more than one nucleotide, repair by nucleotide excision (NER) is performed.

Nucleotide excision repair (NER)

The damaged area is recognized by UvrA and B, then A and B separate and UvrC enters which forms a complex with endonuclease activity with B. This enzyme cuts the T-dimer and the gap is filled by a DNA polymerase. There is also the TC-NER system (transcription-coupled nucleotide repair system). The alteration of these mechanisms gives rise to diseases such as: Xeroderma pigmentosum, Trichotiodystrophy or Cockayne Syndrome

5 0
3 years ago
Read 2 more answers
Give examples of how radiation can lead to mutation
statuscvo [17]

Answer:

cystic fibrosis, phenylketonuria, hemochromatosis, Bloom's syndrome, and ataxia-telangietasia. The X-linked recessive diseases are due to mutations in genes located on the X chromosome and include Duchenne's muscular dystrophy, Fabry's disease, steroid sulfatase deficiency, and ocular albinism.

Explanation:

8 0
3 years ago
How can a diet that is 90% carbohydrates support the same amount of protein in the human body as a diet that is only 15% carbohy
jeyben [28]

Answer:

Due to increase or decrease in the concentration of carbohydrates have no effect on protein concentration.

Explanation:

A diet having 90% carbohydrates support the same amount of protein in the human body as a diet that is only 15% carbohydrates because with the increase or decrease of carbohydrates in the diet does not increase the amount of protein. Protein and carbohydrates are two different things, proteins broken down into amino acid that is utilize by the body for making muscles while carbohydrates are broken down into glucose that is used by the body for performing daily activities.

7 0
3 years ago
What are bones made out of?
Inessa [10]
<span>Made mostly of collagen. Its also a living growing tissue.</span>
5 0
4 years ago
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