C
Because a pyramid of numbers is not an ecological pyramid
Selectively permeable <span>membranes can be found around a variety of cells and places. The most common </span>example is the phosphoric bi-layer cell membrane that surrounds every cell in our bodies. Another example<span> of a </span>selectively permeable membrane is the inner membranes of an egg.<span>Selectively permeable membranes can be found around a variety of cells and places. The most common example is the </span>phospholipid bilayer<span> cell membrane that surrounds every cell in our bodies. Another example of a selectively permeable membrane is the inner membranes of an egg.</span>
B ) As calcium binds with troponin C , it removes the troponin I and open the binding site for myosin head to attach !!
so your answer is B !!
C. NH3 - organic nitrogen
The answer to the question above is letter a. melting.
>Exothermic is the giving off heat energy the transfer of energy to the surroundings.
>In exothermic reaction, the energy is
usually transferred as heat energy
<span>> Other example of exothermic is combustion</span>
