1. List the 4 basic mechanisms of evolutionary change?

Identify the missing parts of the carbon cycle

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables