What percentage of the earth's surface is covered by water?

If the birth rate of a population of dolphins is 2.0, the death rate is 0.5, and the population size is 100, what is this dolphin's population growth?

What the theory that the sun goes around earth was replaced with the theory that earth goes around the sun this was an exaple of a

Lucia is walking barefoot in her yard. she accidentally steps on a nail. how will her nervous system work to generate a reaction? arrange the eventschronologically.