Cytochrome c is a molecule used in the electron transport ch…

Cytochrome c is a molecule used in the electron transport chain of many organisms. Data regarding differences in the amino acid sequence of cytochrome c show that the sequence in a moth differs from a turtle by 15 about amino acids, while a moth differs from a human by about 30 amino acids. Therefore,

There are two species of larkspur that have two different si…

There are two species of larkspur that have two different size flowers; Delphinium decorum has large, fully opened flowers and Delphinium nudicaule has small bud, like flowers. These two species are both fertilized by insects, but they cannot be fertilized by the same type of insect because the smaller flower of D. nudicaule will not permit larger insects to reach the nectar of the flower and the larger flower of the D. decorum is typically fed on by larger insects. Which type of isolating mechanism would this be?