1. A plant's stem growing upwards and its roots growing downward into the ground is a form of *

A. Gravitropism
B. Hydrotropism
C. Phototropism
D. Thigmotropism

Question 1 of 102 pointswhich best describes adaptive radiation? oa. geographical isolation caused by an adaptationob. biodiversity resulting from few ancestorsoc. a decrease in the rate of speciationd. adaptations that organisms teach each other

What does the hardy-weinberg principle relate to? a. chances of survival of an organism b. frequency of alleles in a population c. natural selection in a species d. causes of evolution among organisms

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute