What is biological evolution?
a) the change in the gene pool of a population over time
b) the ability of an individual organism to acquire traits
c)the adjustments individual organisms make to their environment

What is a cordon and where is it found

Describe how a student should adjust the microscope to see the cells on a slide more clearly?

Dr. arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode. it measures the volume of the sound that occurs at the minimum pressure at which the explosion will occur. it then increases the pressure and measures the volume of the explosions that occur. what kind of investigation is the scientist conducting?