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There are two types of muscle fibers, fast-twitch and slow-twitch. Each muscle is a combination of different proportions of these fibers. Muscles in different people have different compositions, which is why some athletes are better marathon runners, while others are better sprinters.
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What speeds up the rate that chemicals will react?
Catalysts.
What muscles react very quickly?
Skeletal muscles react very quickly of all three muscle type, probably.
Does the nervous system transmit information that tells your muscle and otherinternal organs how to react?
The nervous system does not tell muscles how to react. The nerves transmit electrical pulses that make muscles contract. Different nerves attached to different muscles strands control how a muscle reacts. For example, nerves going to some arm muscles when they contract may make your elbow bend. Nerves going to a different set of muscles when made to contract may make your arm straighten out at the elbow. Using all muscles in that area allows you to maintain a bent elbow in a specific position.
Is a species which speeds up chemical reactions but does not react itself?
cameral
Is the following sentence true or false skeletal muscles react quickly and tire easily?
its false... skeletal muscles cannot react quickly and they don't tire easily...
What is the cause of muscles twitching?
Muscle twitching is mainly cause by stress and anxiety.
How might smooth muscles react slowly and tire slowly be an advantage for smooth muscles?
it makes it tight
How do astronomers know the sun's surface rotates at different speeds?
Sunspots rotate at different speeds.
How do you find the average velocity if there are two different speeds?
We sum the two different speeds and devided by two
What happens to your breathing when you excerise?
Your breathing speeds up when you exercise in order to get oxygen to your muscles and heart.
Why does speed travel at different speeds in different liquids?
no
Do sounds have different speeds?
No! Lol
