From an evolutionary perspective, what is the significance of reproductive isolation developing between two populations within a species?

Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work)

Many organs are involved in the processes of keeping the blood and the body clean. when poisonous or harmful substances are in the blood, they are absorbed by the and released in a less harmful form. when wastes are present in the blood, they are filtered out and removed from the body by the

If a strand of dna has 35% thymine. what is the percentage of cytosine, adenine, guanine?