Answer:
work is measured in newton-meters (N-m).
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.
C: melted rock cools and solidifies
D: sediment is buried and compacted
Answer:
A. RNA
Explanation:
DNA has the chemical base of thymine, while RNA does not.
Instead, RNA has the base of uracil, to replace thymine.
Since the analogy relates thymine to DNA, uracil must be related to RNA.
So, A is the correct answer.
Thymine is to DNA as Uracil is to RNA.