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sweet-ann [11.9K]
3 years ago
9

What is the voltage across a membrane called?

Biology
1 answer:
Marina86 [1]3 years ago
3 0
It is called a cell membrane potential
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Which two elements make up the most
Dmitriy789 [7]

Answer:

C. H and O

Explanation:

Almost 99% of the human body's mass is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium and phosphorus, in that order.

Element   Symbol   % in body

Oxygen       O              65.0

Coal             C               18.5

The human body is composed of 60% water, that is, H2O.

7 0
2 years ago
The sickle-cell allele produces a serious blood disease in homozygous recessive individuals. why doesn't natural selection elimi
icang [17]

No, the sickle-cell anemia allele won't be eliminated by natural selection.

Sickle-cell anemia trait is controlled by a single gene and the allele (S) for sickle-cell anemia is a harmful autosomal recessive.

It is caused by a mutation in the normal allele (A) for hemoglobin (a protein on red blood cells).

Heterozygotes (AS) with the sickle-cell allele are resistant to malaria, a deadly tropical disease. It is common in many African populations.

In these areas, (S) carriers have been naturally selected, because their red blood cells, containing some abnormal hemoglobin, tend to be in sickle shape when they are infected by the malarial parasite.

Therefore, they are more likely to survive and reproduce. This keeps the S allele in the gene pool.

Learn more about Sickle-cell anemia on

brainly.com/question/14505007

#SPJ4

3 0
2 years ago
In science class, Maria observes a white-colored cut flower. She sees that the petals turn red when the flower is sitting in a v
Svetlanka [38]

Answer:

D

Explanation:

Its d I think tell me if it's wrong If it is I'm sorry

4 0
3 years ago
In bacterial cells, the replication of DNA begins at a specific site called the ____ of replication, and proceeds in both direct
NNADVOKAT [17]
Origin of replication
Termination site? I am not too sure about the second one.
5 0
3 years ago
Which option is a balanced equation for photosynthesis? A. CO2 + H2O > C6H12O6 + O2 B. 6C6H12O6 + 6O2 > 6CO2 + H2O C. C6H1
Karolina [17]

The answer is; D

A balanced equation is one that observes the law of thermodynamics on the conservation of matter and energy. Matter or energy cannot be created or destroyed but can only be transformed.

In this equation, therefore, the number of elements on the right side of the equation should match those of the left side. Of the choice equations, this is a balanced one; 6CO2 + 6H2O --> C6H12O6 + 6O2 and one that reflects the process of photosynthesis.


7 0
3 years ago
Read 2 more answers
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