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Aleksandr [31]
2 years ago
5

What is the surface temperature of Barnard's Star in Kelvins? (Astronomy)

Biology
1 answer:
Alex17521 [72]2 years ago
5 0

Answer:

the answer should be 3,100 kelvin.

Explanation:

its surface has very hot flares causing it to be about 3,000 to 8,000 kelvins. this would mean its surface temperature should be around 3,100.

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Which bonds could a single carbon atom have
nadya68 [22]

Answer:Carbon has four valence electrons, so it can achieve a full outer energy level by forming four covalent bonds. When it bonds only with hydrogen, it forms compounds called hydrocarbons. Carbon can form single, double, or triple covalent bonds with other carbon atoms.

Explanation:

5 0
3 years ago
Use the information gathered in the A Three Point Test Cross animation to answer the question. Genes H and K are linked and are
Snowcat [4.5K]

Answer:

3.5 percent (3.5%)

Explanation:

In genetics, <em>crossing over</em> or 'recombination' refers to the exchange of genetic material between non-sister chromatids of homologous chromosomes during meiosis I. The map units (m.u.), also known as centimorgans, represent a measure of genetic linkage between genes/<em>loci</em> located on the same chromosome. One map unit (1 m.u.) is equal to a 1 percent chance that two gene/<em>loci</em> (in this case, genes H and K) will be separated during meiosis by recombination. In the example above, it means that among their progeny, 3.5 percent (3.5%) will be recombinant for the two genes (H and K), and 96.5 percent (96.5%) will have the parental combination of these genes.

4 0
3 years ago
​the microscopic functional units of each kidney are known as a _____.
Phantasy [73]
The answer is Nephron :)
8 0
3 years ago
How does lead poisoning affect the nervous system?
Mandarinka [93]
When researchers examine these damaged nerves, they find that the myelin insulation is often gone and the axons are destroyed. These changes prevent nerves from transmitting messages properly.
A
4 0
3 years ago
How do the nervous system and endocrine system work together? apex?
jek_recluse [69]
The nervous and the endocrine system are tightly linked together.
The main reason for this linkage is due to the connection of the hypothalamus (nervous system) and the hypophysis (a gland in the endocrine system)
The hypophysis is the ''controller'' of all of the other endocrine glands.
The connection between the hypothalamus and the hypophysis enables the nervous system to control the hormone levels of all of the major endocrine glands in the body.
The hypothalamus releases hormones into the bloodstream that leads to the hypophysis. These hormones induce a release of hypophysis hormones that enter the bloodstream and when they reach the target gland (for example pancreas) these hormones induce the release of the hormones of that gland (in the case of the pancreas, insulin).
The hypothalamus monitors the concentration of hormones in the blood, and a high level of a certain hormone blocks the release of the hypothalamus' hormones. Therefore, a high level of insulin blocks a cascade of hormone release that starts in the hypothalamus that leads to its release in the pancreas.

6 0
3 years ago
Read 2 more answers
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