the right answer is by diffusion across a capillary wall
The answer is weathering.
<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:Dogs have many charateristics and it depends on what dog you own
Explanation:
300 BC by Greek philosophers
