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weeeeeb [17]
2 years ago
8

Select the best answer for the question.

Biology
1 answer:
Arisa [49]2 years ago
4 0

Answer:

B. Plasma

Explanation:

We normally have 55% plasma in our blood stream, plasma pumps out all of the waste of products and brings nourishment to our metabolism.

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Probiotics are supplements that contain beneficial bacteria that aid in digestion. Some healthcare professionals have seen these
vovikov84 [41]
Probiotics main function is to promote healthy bacteria in our digestive system. When a person is sick or exposed to a harmful bacteria the person digestive system becomes unbalanced. Probiotics fight off the invaders and restores the gut health preventing inflammation and infection. While they fight do fight off bad bacteria we can still end up sick from food borne illnesses. Therefore, Option three explains the main idea and role of probiotics in our body.
4 0
2 years ago
What causes the refractory period in sodium channels after an action potential has been initiated? The sodium channel CANNOT be
harkovskaia [24]

Answer:

Explanation:

This is because once a Voltage Gated Sodium Channels closes up after depolarization, they can not be reopened.The  transmission  of action potential is such a way that  they are propagated one after the other in a forward direction, and never backwards. Thus once a sodium channel depolarizes,it closes up,  to under go a shot rest.No matter the strength of the next stimulus it will not open. Then the channel ahead of it opens to depolarise  to conduct action  potential, this again after shut opening closes up for the channel ahead to open.  This short period of rest when the sodium channels closes up  is called refractive period.  However after sometime of rest the rested sodium channels open, from the inactivated stage to conduct action potential.

4 0
3 years ago
Кръвните групи при човека се унаследяват чрез:​
wlad13 [49]
Blood groups are inherited from our biological parents in the same way as eye colour and other genetic traits


Кръвните групи се наследяват от нашите биологични родители по същия начин като цвета на очите и други генетични черти
3 0
3 years ago
In the ABO series, the gene for blood type O is , while A and B are genes, and AB is .
Nesterboy [21]

Answer:

Gene for blood type O is recessive

Gene for blood type A and B is dominant

Gene for blood type AB is neither dominant nor recessive but a form of co-dominance

Explanation:

In the ABO blood group,  

A and B are dominant genes, O is recessive genes.  

So the different genotype and its corresponding phenotype is as follows –  

Genotype    Phenotype

AO     A

BO     B

AB     AB

AA     A

BB     B

OO     O

Hence, the two alleles AB occur and express together. Therefore, AB blood group is an example of co-dominance.  

Blood type also varies with the presence of Rh factor. If Rh factor is present, the blood type will represented with a “+” symbol. And if Rh factor is absent, the blood type will be represented by “-“symbol.

6 0
3 years ago
Graves disease include what its symptoms are, who it can affect most, what other issues it can cause, and what medications or ch
fredd [130]

"Graves' disease is an immune system disorder that results in the overproduction of thyroid hormones (hyperthyroidism). Although a number of disorders may result in hyperthyroidism, Graves' disease is a common cause."

-https://www.mayoclinic.org/diseases-conditions/graves-disease/symptoms-causes/syc-20356240


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