A student wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. To test this hypothesis, the stu
dent put the same amount of grass seed in 3 containers with the same type of soil. The student measured the growth at the end of the week. All plants received equal amounts of water and sunlight. If you were asked to graph this data, what would you place on the x-axis?
A.
fertilizer
B.
water
C.
plant growth
D.
week one
It would be B) unconscious. I know this because when you're not thinking about something it is not in your conscious mind, so it would be in your unconscious mind.
As the Grand Canyon formed, it became a physical barrier to the mixing of squirrels from its northern and southern sides. Each squirrel population was confined to a single side. This type of separation is referred to as geographic isolation.
