1: <span> muscle fibers
2: </span><span> Endurance activities
</span>3: <span> a motor unit
4: </span><span> All or none principal
5: </span><span>Striated muscles
6: </span><span>Smooth muscles
7: </span><span> Cardiac muscles
</span>
Answer:
skeletal muscles control his leg movement and cardiac muscles control his heart rate
Answer:
A
Explanation:
as human population increases so does extinction
<span>Do not specify a particular amino acid and provide punctuation or instructions such as "stop."
</span>
Or in other words
Do not specify a particular amino acid and are signals to terminate translation.