What led to the Dust Bowl? A. Tornados
B. Soil erosion
C. Excessive wind
D. Too much government regulation

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important

Match with o for organic and i for inorganic for each compound

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind