Two models for the speed of speciation are based on patterns in the fossil record. Which of the following statements describes the punctuated equilibrium model of evolution? A. Natural selection is unimportant as a mechanism of evolution.
B. Given enough time, most existing species will gradually branch into new species.
C. Species accumulate their unique features rapidly, then change little for the duration of the species.

C) to ensure each new cell has an exact copy of the dna

There's no options to. choose from

is a major contributing factor for mother-to-child transmission of hiv. cesarean birth before the onset of labor and/or rupture of membranes can greatly reduce the chance of transmitting the infection to the infant. future pregnancies should be discussed and decided on an individual basis. proper treatment of any open wounds and education should be provided to the mother to ensure she reduces the chance of transmitting hiv to her infant.

Probably more than 50%  hope i you : )