What role do smooth muscle cells perform in a human body?

Biology

2 answers:

ss7ja [257]2 years ago

7 0

Answer:

heart contraction

Explanation:

because smooth muscle helps in hea

rt contraction

Dimas [21]2 years ago

6 0

Answer: organ contraction

Explanation: edge 2020

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Doctors do not administer vaccinations to people who are too sick. Which best explains why?

4vir4ik [10]

Answer:

D, The white blood cells of sick people may not be able to efficiently handle the weakened or dead form of the pathogen.

Explanation:

Vaccinations are essentially just weak diseases we use to create antibodies so the body can protect itself from the full disease. If it sees it once, it can defend itself, is the theory. This is choice D.

Why not A: The weakened form will be attacked by the immune system, but maybe not enough, because the person is so sick that the immune system is busy elsewhere.
Why not B: The medication is not what combines with the vaccine to cause problems. It is the body being overworked.
Why not C: The digestive system isn't the issue. You don't eat diseases.

4 0

2 years ago

In an ionic compound, the attraction between actions and _________ hold the compound together

Nady [450]

Answer:
The correct option in blank is anion.

Explanation:
Ionic compound is formed by the transfer of electron from one atom to another atom. When an electropositve atom lose an electron it form cation, whereas as anion is formed when an atom gain an electron. These actions and anions then attract each other and form an ionic compound.
I hope it will help you.

Example:
The formation of NaCl is best example of ionic compound. Na has one electron in its outer most shell which can easily be removed to form Na+, while Cl has seven electron in its outer most shell so it can easily gain an electron lost by Na to form Cl-. Then these ions attract each other and form NaCl as shown in the figure.