The reason why certain areas on earth receive more solar radiation and are warmer is because of the

a- angle of the sun rays
b-distance they are from the sun

Use the phylogenetic tree to the right to determine which statement below is true. organisms a and f are not related. organism e is more closely related to organism b than organism f. organisms c and d are more closely related than organisms a and b. phylogenetic trees

What is responsible for the uneven heating between the poles and the equator on any given day

What is the name of the protein found in erythrocytes that transports respiratory gases and provides the red color?