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3 years ago

15 POINTS WILL GIVE BRAINLIEST AND WILL GIVE GOOD REVIEW MUST GET IT WRITE AND MUST ANSWER FAST

Biology

1 answer:

snow_lady [41]3 years ago

8 0

Cell theory: all living organisms are made of cells, cells are the basic unit of structure and function in living things, and cells arise from previously existing cells. All the other choices are not part of cell theory.

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What does nCoV stand for ?

sattari [20]

Answer:

nCoV is often used to indicate a newly recognized coronavirus prior to definitive identification and classification. It is sometimes used in combination with the year of identification.

Explanation:

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2 years ago

Blood pressure is greatly effected by the volume of blood contained in the closed circulatory system of vertebrates. blood volum

Tems11 [23]

The right answer is the kidney will regulate the blood pressure by the renin angiotensin aldosterone system.

The kidney plays a role of selective filtering of the blood. It allows the blood to get rid of its waste. But it also removes water and mineral salts that are in excess.

But the kidney also plays a dynamic role in increasing the pressure, by means of a system called "renin-angiotensin system" which is one of the most powerful natural hypertensives available to the body. Thanks to an enzyme he makes, renin, the kidney will turn a normal blood protein, angiotensinogen, into angiotensin, which causes the vessels in the body to contract and therefore increase blood pressure. This effect is manifested permanently in a disease which is the stenosis of the renal artery, that is to say the permanent narrowing of the caliber of this artery. The kidney, believing that the blood pressure decreases because of this narrowing, will permanently produce renin, which will cause an immediate increase in blood pressure.

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3 years ago

How do these animals most likely make up for not being able to store adequate energy in fat reserves?

guajiro [1.7K]

Answer:

Explanation:

Its C

5 0

3 years ago

Read 2 more answers

The dominant allele H reduces the number of body bristles in fruit flies, giving rise to a hairless phenotype. In the homozygous

DerKrebs [107]

Answer:

a. 3:1 (normal bristles to hairless)

b. 2:1 (normal bristles to hairless)

Explanation:

a. If H allele is present, the fly will be hairless. But H allele is lethal at homozygous condition, so all hairless flies will be heterozygous for H locus (Hh). S allele has no effect on bristle number, but in presence of H allele, S produces a "normal" phenotype and is also lethal at the homozygous condition. So genotypes and phenotypes will be like this:

- SSHH: No viable- Lethal

- SSHh: No viable-Lethal

- SShh: No viable-Lehtal

- SsHH: No viable-Lethal

- SsHh: Normal

- Sshh: Hairless

- ssHH: Normal

- ssHh: Normal

- sshh: Normal

A cross between two normal flies carrying the two alleles (SsHh) will produce (according to the attached Punnett Square):

6 Normal (SsHh, ssHh, and sshh)

2 Hairless (Sshh)

Therefore, the ratio of flies with normal bristles to hairless individuals will be 3:1.

b. When the hairless progeny of the previous cross (Sshh) are crossed with one of the parental normal flies from part a (SsHh), it will be produced (according to the second Punnett Square):

8 Normal (SsHh, ssHh, and sshh)

4 Hairless (Sshh)

So, the ratio of flies with normal bristles to hairless individuals will be 2:1.

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3 years ago

Sally and Charlie were learning about the plant and animal kingdoms in science class. Their assignment for the day can be seen a

Tatiana [17]

Answer:the answer is D

Explanation:

ALL LIVING THING NEEDS NUTRIENCE

8 0

2 years ago