The fossil record reveals that the diversity of flowering plants and the diversity of certain insect groups increased at the same time. How might you explain this?

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?

Amarine ecologist has constructed the conceptual model shown in the diagram. what predictions can be made from using this model? where the tertiary consumers get their energy how often primary producers are able to reproduce when bacteria and fungi initiate the process of decomposition whether other secondary consumers are present

At which point is crust neither created nor destroyed? island chain mid-ocean ridge divergent boundary transform boundary