Answer:
At the microscopic level of a visceral muscle cell are actin and myosin filaments. They slide past each other in an antiparallel manner to shorten the distances between their ends. In a smooth muscle cell, the ends of chains of these functional units are attached to the cell membrane. They are several in a cell arranged in an elaborate framework. They contract together and deferentially to enable the muscle to contract as needed.
Answer:
<h3><u>
Protons & Nucleons</u> are the 2 subatomic particles make up the nucleus of an atom.</h3>
Explanation:
By acting as decomposers on dead plants and animal
<span>Dens (odontoid process) Hope this helps.</span>
C because the heart pumps normally with a constant pressure but when it is lower it needs to push harder to get the blood to where it needs to go causing it to malfunction