Es un saco con paredes finas que rodea al feto durante el embarazo. El saco contiene líquido amniótico (líquido producido por el feto) y el amnios (membrana que cubre el lado fetal de la placenta), que proteje al feto de lesiones y ayuda a regular su temperatura.
I believe it would be A. because that is the muscle that regulates the heart pumping. This would happen because the pacemaker is taking over and it now has no purpose.
Answer:
The correct answer will be option-C.
Explanation:
The muscle contraction occurs as a result of the sliding of the myofilaments made up of thin actin filaments and thick myosin filaments. The actin contains a binding site for the myosin which is covered with the tropomyosin-troponin complex proteins.
The troponin contains a binding site for the "calcium" which is released from the sarcoplasmic reticulum in response to the nerve signals. The calcium binds the troponin and causes conformation changes in tropomyosin which exposes the myosin-binding sites to bind myosin. The myosin binds and forms cross-bridge and cause muscle contraction.
Thus, Option-C is the correct answer.
Answer:
B or C i think
Explanation:
because Eons are broken into eras and then into periods. Its not A tho