MYSTERY BULL

A roan (RW) bull is mated with a red (RR) cow 3

The response is the basis for vaccination. primary secondary tertiary none of the above

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

Fredrick griffith made a scientific discovery in 1928