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Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.

Interactions between organisms and their environment impact the organism’s overall population. the jaguar panthera onca is the largest cat in north america. it is found in areas across the southwest, including arizona, new mexico, and texas. it is a carnivore that has powerful jaws and sharp teeth and preys on fish, turtles, tapirs, and many smaller mammals. which shows the relationship between the jaguar and turtles?