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Burka [1]
3 years ago
15

Excitation of the sarcolemma is coupled or linked to the contraction of a skeletal muscle fiber. what specific event initiates t

he contraction?
Biology
1 answer:
butalik [34]3 years ago
4 0
The impulse is initiated when the skeletal muscle sarcolemma (membrane) receives an inpulse from a motor neurone.
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Kisachek [45]

Answer:

genetics

Explanation:

calico cats must also inherit a gene unrelated to the X and Y chromosomes that codes for white fur. Because male cats have one X chromosome with code for black or orange and one Y chromosome with no color genes, they cannot technically be calico. About one in every 3,000 calico cats is born a male, and, unfortunately, don't live as long as female calicos due to their genetic abnormalities. XXY Syndrome renders male calicos sterile and can be the root cause of many other health problems

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A newly discovered solar system is found 300 billion kilometers from the sun. How many AU does this represent? Show your work.
Aleksandr-060686 [28]

1 kilometer = 6.68 × 10^{-9} (<<<AU is in scientific notation here)

To convert 300 billion kilometer (3,000,000,000 km)  into AU you must multiply the kilometer by the equivalent of 1 km in AU (6.68 × 10^{-9})

3,000,000,000 × (6.68 × 10^{-9}) =  20.04 AU

Hope this helped!

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The answer is D

Explanation:

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What biomolecules embedded in the cell membrane is responsible for facilitating the carrying of channeling of molecules across t
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