Do all cells replicate their dna​

Ascientist separates a population of mice into two groups. what would most likely increase the rate of speciation in this population. a. teach the two groups different tricks b. allow the two groups to breed with each other c. put the two groups in different environment d. have the two groups live in identical ecosystems

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

What organs comprise the respiratory system of a bird