I think the correct answer from the choices listed above is option C. <span>Enzymes are catalysts. This means that they are able to speed up chemical reactions. Also, they are not used up by reactions. They are not being consumed in the process. Hope this answers the question. </span>
There are several ways;
The Skeletal system protects for example the heart and several aspects of large vasculature. The skeleton also has the means to produce blood cells in the marrow of some of the bones.
The long arm of a chromosome
Their bodies are made for that temp and climate and landscape
B Since protons and electrons have to be the same amount!
