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Iteru [2.4K]
3 years ago
13

The __________ are primarily responsible for maintaining the salinity of the renal medulla versus the renal cortex.

Biology
1 answer:
Yuki888 [10]3 years ago
5 0
I forgot and have the same problem
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The 4th question please?
yulyashka [42]

An athlete or a person with some disease may vary in dietary needs.

<h3><u>Explanation</u>:</h3>

The diet is one of the most important part of a human life. The person gets energy, all the macro and micro nutrients from the food. They get to have all protective principles of food from diet. There's an average balanced diet formula which says that the amount of carbohydrate to fat protein in a diet should be 3:1:1.

But it varies according to person's daily need of energy. For an athlete, the amount of energy needed is much more. So the amount of fat and protein in diet should increase. For an obese person, fat and carbohydrate restricted diet should be used. For a person with renal failure, very low protein diet should be suggested.

5 0
3 years ago
HIV can remain latent for several years and not cause any symptoms in its host. What viral reproduction cycle is occurring durin
lakkis [162]

Answer:

The lytic cycle.

Explanation:

<u>HIV is a retrovirus</u> that has a special enzyme called transcriptase reverse, which can synthesize DNA using RNA as a template. This replication system is particularly useful for the virus because the DNA synthesized from the RNA viral genome can be then integrated into the human chromosomes and stay inactive for years. This is called a lysogenic cycle and is characterized by a latency of the virus and an integration to the host DNA.

When there is a triggering event, <u>this latent virus can be excised from the human chromosome and start producing copies of itself using the host machinery.</u> <u>Then the virions are assembled and after that they lyse the host cell and release new infective units that can then infect neighboring cells. </u>This is called the lytic cycle of the virus and is the reproduction cycle that occurs when a person moves into the acquired immunodeficiency syndrome (AIDS) stage of HIV infection.

6 0
3 years ago
Describe the two forms of secondary structure.
professor190 [17]
Secondary structures are dependent upon hydrogen bonding. The two main types of secondary structure are the a-helix and the B-sheet. The a-helix is a right-handed coiled strand.
8 0
3 years ago
In which part of the human respiratory system does actual oxygen exchange take place?
lozanna [386]
The alveoli. These little air sacs are found on the end of the bronchioles and are the place where oxygen enters the blood and the carbon dioxide leaves. 


7 0
3 years ago
1. Describe in your own words how competition may leads to natural selection.
Lynna [10]

bro this is so easy,

if to animals fight, the one more adapted, prepared or psychically built will win will the weaker one lose and die, which is natural selection at its finest.

8 0
3 years ago
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