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3 years ago

Which term means a disease characterized by the simultaneous inflammation of voluntary muscles in many parts of the body?

Biology

1 answer:

zheka24 [161]3 years ago

7 0

Answer:

polymyositis

Explanation:

Polymyositis is the disease in which inflammation of voluntary muscles and associated tissue occurs in various body parts. So it affects both sides of the body. Most of the weakness is seen in muscles of the shoulder, upper arm, thighs, neck, and hips.

This condition makes some jobs difficult for patients like difficulty in climbing stairs or lifting objects, etc. Women are at higher risk for this disease than men. Till now it's cure is not available but several therapies and physical exercise can help in gaining muscle strength.

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Homeostasis is the ability of the body to A) prevent the external environment from changing. B) prevent the internal environment

lana66690 [7]

Answer: B. prevent the internal environment from changing

Explanation: homeostasis actually helps the internal environment keep a stable, constant, condition.

4 0

3 years ago

Calcium is stored in and provides structure to bones, but calcium has other important roles as well. Select the statement below

alexdok [17]

Answer:

a. Calcium is an electrolyte that assists in the transmission of nerve impulses.

Explanation:

In the process of muscle contraction, the action potential (electrical impulse) releases the calcium stored in the sarcoplasmic reticulum located in the muscle.

Calcium then flows into the cytoplasm, where the actin and myosin filaments are located, which will interact with each other to promote muscle contraction.

Thus, it can be concluded that calcium does play an important role in nerve impulse transmission.

Given the above statements, it is concluded that the correct alternative is "A" .

As for the other statements: Calcium, as described above, also participates in the process of muscle contraction, however it is the muscle cells that contract, not the nerve cells (Statement B).

In addition, calcium does not participate in the formation of muscle cells (Statement C), nor can it make the blood slightly acidic (Statement D) because it has alkaline (basic) character.

3 0

3 years ago

What is the graphical representation of age structure known as?

gayaneshka [121]

Answer:

The graphical representation of the age structure is known as age pyramid (option D).

Explanation:

The age pyramid or more properly called population pyramid groups all the individuals of a population, distributing them by age and sex. The name is due to the fact that, in general, the bar graph resembles a pyramid.

The age groups are distributed in the pyramid by age from lowest (bottom) to highest (top), with the sexes forming the sides of the pyramid.

In emerging countries the population is relatively young, which makes the base of the pyramid wide, narrowing as it moves up to the upper age groups.

Age group, age graph or age scale do not correspond to the population graph where the age and sex structure of a population are expressed.

8 0

3 years ago

Which technology are environmental scientists using in conjunction with electronic collars to track the movements of polar bears

Afina-wow [57]

Environmental scientists are using GPS ( It is effective but expensive) aerial monitoring (Quick but not the easiest), RFID tags, (mostly for long-term monitoring) and hidden cameras are used to study polar bear behavior without interruption to their environment.

8 0

4 years ago

How does the sense of vision help maintain equilibrium?

umka21 [38]

The eyes detect changes in posture and inform the brain about the position of the body, so vision is very important for maintaining balance, in the optic disc nerve fibers leave the eye.

7 0

3 years ago