Question

Two types of corn plants are grown in the same soil and with the same sun and water. Group A grows taller than Group B. What is the most likely reason for this difference?

(1 point)
Responses

Group A must have received more water than Group B.
Group A must have received more water than Group B.

Group B was probably planted in a much colder location.
Group B was probably planted in a much colder location.

The two groups of plants had different genetic factors.
The two groups of plants had different genetic factors.

The soil for Group B was less healthy than Group A's soil.
The soil for Group B was less healthy than Group A's soil.

Answer 1

The two groups of plants had different genetic factors.

Explanation: Sun, water, and soil were the same, so environmental variables are controlled. Height differences are most likely due to genetic variation between the two corn types.