Im sexual reproduction the development if a new individual begins with

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers

In what part of the body does the most muscle activity happen?

Vessels draining the myocardium of the heart, open primarily ,into which chamber?