The link where the action
potential of the nerve that meets muscle and causes it to contraction is where excitation-contraction coupling occurs. The T_tubules the
invaginate into the sarcolemma of the muscle cells are the ones that carry the excitation into the muscles. Its depolarization
causes the lateral sacs of the sarcoplasmic reticulum to release ca2+
ions. The ca2+ then bind into their site on troponin and causes the tropomyosin to shift and allow actin to expose
the binding site in which myosin head
will bind and form a cross bridge that is
important in the contraction of the muscle.
It's hot as the surface of the sun , I wish the answers were more specific but remember the core is made out of. Nickel and iron and above it the others layers conducts convection cells and etc
Answer:
Yes each abele is both dominant and recessive
Explanation:
Because it’s true
Answer: A
Explanation: A animal is going to develop this because of the Day Heat, where as at night, it is much cooler. Hope this helped!