Explanation:
A concentric contraction cause muscle to shorten,thereby generating force.Eccentric contraction cause muscle to elongate in response to a greater opposing force.
Answer: building the Berlin Wall??
Explanation: quizlet
False
Vigorous exercise should not be a significant challenge, but it should raise your heart rate and make you have to work for it,
The answer to this question is the drug "Beta-1 Adrenergic" which is also known as ADRB1. It is a certain drug that affects and decreases the heart rate by simply blocking a receptor on cardiac pacemaker cells. This drug also probably binds to Beta-1 Adrenergic.