Our blood is mostly water. blood has the important job of circulating nutrients and ions to every cell in our body. the only reason blood is able to do this is because
it is mostly water, and water is a non-polar liquid
it is mostly water, and water is very basic
it is mostly water, and water is a universal solvent dissolving many different substances
it is mostly water, and the bonds of water are not able to be broken

Animal bodies (and even plant bodies for that matter) are complex enough that life couldn't exist without enzymes. enzymes are usually large, complex biological catalysts that are expensive to make. enzymes speed up the rate of chemical reactions without being used up during the reaction (they can be reused many times). they are highly specific in the reactions they regulate. knowing what enzymes are and how they function, why does this explain why complex life forms could not exist if there were no enzymes.

Amouse that is homozygous for the dominant trait has the genotype . it has . a mouse that is homozygous for the recessive trait has the genotype . it has . image of fur color of mice

In which way are mercury and venus similar? they both rotate from east to west. they are both small and rocky. they both have thick atmospheres. they both are similar to earth in structure.