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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Answer:
a&b blood
Explanation:
because it needs to be half mother and a father blood that why my answer is a&b blood
Answer:
thymine
Explanation:
Adenine always bonds with Thymine in DNA and Cytosine always bonds with Guanine
Answer: 1 : knowledge about the natural world that is based on facts learned through experiments and observation. 2 : an area of study that deals with the natural world (as biology or physics)
Explanation:
