Answer:
The ability of a muscle to produce force is because a concentric contraction causes muscles to shorten and thereby generating force.The muscle eccentric contractions cause it to elongate in response to a greater opposing force. Isometric muscle contractions generate force without changing the length of the muscle.
D. Pangea
Wegener proposed that the continents were once compressed into a single protocontinent which he called Pangaea, meaning "all lands", and over time they have drifted apart into their current distribution.
Outside lower rear legs
hope that helps!!!
Answer:
the heart
Explanation:
the heart is a muscular organ in the center of you chest that contract about 60-80times
