Imagine you visited and studied study sites in a desert and in an evergreen forest. How will you consider the population density, frequency, and relative abundance in both these places? Someone please help me

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.

not: both offer magnification to the atomic level.