During exercise, cardiac output may increase by more than 170% to meet the body's increased o2 demands. this increase in cardiac output increases blood pressure. but the accompanying increase in arterial pressure is relatively small—only about 40%. what limits this increase in blood pressure so that it doesn't reach dangerously high levels during exercise?

Which best summarizes the finding of avery? a. some traits are recessive. b. humans reproduce sexually. c. dna is a transforming factor. d. traits cannot be inherited.

Dna is always read in the whereas rna is read in .

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.