species "a" and species "f" have wings, but their shared common ancestor was wingless. what term below best explains this evolutionary process?

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

Pl as time goes by and water goes through the water cycle again and again, the amount of water on earth: increases decreases ostays the same goes up and down

Cells must be in osmotic equilibrium with their surroundings environments because if they swell or shrink thier membranes will rupture