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Darina [25.2K]
3 years ago
6

What are antibiotics and how and why do they work?

Biology
1 answer:
netineya [11]3 years ago
5 0

Answer:

Antibiotics are medicines that help stop infections caused by bacteria. They do this by killing the bacteria or by keeping them from copying themselves or reproducing. The word antibiotic means “against life.” Any drug that kills germs in your body is technically an antibiotic.

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A piano player uses her hands for brief quick movements. Which muscle fiber type would you therefore predict to be predominant i
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For brief quick movements, which muscle fiber type would you therefore predict to be predominant in these muscles...Fast twitch muscle fiber type.

There are three types of muscle tissue. 1. Cardiac 2. Smooth 3. skeletal muscles. The skeletal muscle are involved in voluntary movements of the body.

Since the player uses her hand in a voluntary way of movement, therefore she makes use of her skeletal muscles.

With regards to the skeletal muscles, there are two types with regards to speed, we have the slow twitch and the fast-twitch.

The fast-twitch muscle fiber aids in fast movement of the body but for shorter periods compared to the slow twitch.

Learn more: https://brainly.in/question/6418353.

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3 years ago
A mass of 25kg is acted on by two forces, one which is 15 N due east while the second one is 10N due north . The acceleration of
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Answer:
0.72 m/s^2
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Found on quizlet.
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If oxygen is used to carry out cell respiration, the process is called aerobic.
miskamm [114]
True

Aerobic respiration is cellular respiration that needs oxygen.
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Vocal variation, intensity, pacing and use of fillers are a part of which of the speaking competencies
algol [13]
They are part of VOCAL EXPRESSION COMPETENCY. 
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