Answer:
kmmemdkdkkdkdkdkdkdkdkdkd
Explanation:
mmxmxmxmxmxmxmxmmxxmxmxmmxmx
 
        
             
        
        
        
Answer:
Hiya there!
Explanation:
ATP then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site. ATP can then attach to myosin, which allows the cross-bridge cycle to start again; further muscle contraction can occur.
acetylcholine
: Skeletal muscle contraction and changes with exercise. (A) Neurotransmitter (acetylcholine, ACh) released from nerve endings binds to receptors (AChRs) on the muscle surface.
The muscle contraction cycle is triggered by calcium ions binding to the protein complex troponin, exposing the active-binding sites on the actin. As soon as the actin-binding sites are uncovered, the high-energy myosin head bridges the gap, forming a cross-bridge.
Credit sourced from "bio.libretexts.org"
Hope this <em><u>Helped!</u></em> :D
 
        
             
        
        
        
D. type a mother and type b father because they don’t have blood type o from their parent
        
             
        
        
        
Answer:
<em>The correct option is A) The cell theory is the result of explanations of scientists' observations and not a  description of the cell structure as it relates to the function.</em>
Explanation:
The cell theory can never become a law because Scientific theories are well-tested explanations, while laws are well-tested descriptions of  natural phenomena; one cannot become the other.
A scientific theory is subjected to be changed overtime but a law cannot change. We have observed many changes in the cell theory in the past and we might find changes in this theory in the future also. Hence, the cell theory can never become a law.