If the number of species in a given area increases, which of the following happens?
1) the species diversity increases.
2) the biodiversity decreases.
3) the biodiversity increases
4) the genetic diversity increases.

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi,r^3 , where r is the sphere’s radius.

Which of the following may one conclude from a map that shows the average ph value of rainfall in the u.s.? acid rain is a more serious problem on the east coast. acid rain falls equivalently across the continental u.s. there are more factories on the west coast. the midwest has fewer forests than the rest of the u.s.