An organism made up of many highly specialized kinds of cells that coordinate their activities is a(n)
a. colonial organism
b. aggregation
c. complex multicellular organism
d. simple multicellular organism

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.