3 years ago

A book review would be considered

1 answer:

8 0

It is definitely not a primary source: this would be a book itself.

Now, is it a tertiary source? I don't think so: the author of the review should have read the book and should only be referring to this book in the review.

I think it's a secondary source.

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The contractile units of skeletal muscles are ________.

s2008m [1.1K]

The contractile units of skeletal muscles are myofibrils. Thus,option A is correct.

<h3>What is skeletal muscles?</h3>

Skeletal muscles are 32 to 40% of total body mass. The type of muscles that connect to bones and allow to perform a wide range of movements and functions.

Skeletal muscles are easily controlled and work according to the desire .

Skeletal muscles are specialized tissue that is connected to bones and allows movement.

Therefore, the contractile units of skeletal muscles are myofibrils. Thus option 1st is correct.

Learn more about myofibrils here:

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1 year ago

FOR 100 POINTS! MY LAST QUESTION!!! You have to figure out what sheep in the cloning experiment that produced Dolly had the same

almond37 [142]

Answer:

sheep A had the same DNA and sheep B and C did not provid any of the DNA