Calcium provides strength as a element, though it is present as calcium chloride on the exoskeletons.
That would be D. Isovolumic contraction
As the name states during ISOvolumic contraction the volume of the ventricles doesn’t change and stays the same so no blood enters or leaves the ventricles. The thing that changes is the pressure of the ventricles that increases.
I can explain the process more if u want in the comments:)
Answer:
the answer is the white blood caells.
D - birth control is the most widely accepted method
