<span>Cross bridges are created when myosin heads bind to ATP. This phenomenon is basically muscle contraction at work. In order for myosin heads to be bound with ATP at the actin active site, it must be excited with Calcium.
Once myosin heads bind with ATP, it begins to slide and perform muscle contractions in the body, allowing a person to move.</span>
Answer:
Zero latitude
Explanation:
The difference is high is hotter and low is colder
During interphase DNA is copied. So if there was no interphase, the new cells wouldn't have enough DNA.
