Place your dough or clay into a shallow tray and tear the dough into small pieces, about the size of dried peas or beans. What do the pieces represent in our solar system?

The development of_ factored in the development of complex organisms.

Ausable water source is one that can be used by humans for drinking or agriculture. identify the water reservoirs as usable or unusable based on their current state. oceans rivers glaciers freshwater lakes groundwater

Which member of the following food chain will be least affected by ddt, a pesticide water pollutant, if bio-magnification is occurring? algae> zooplankton> crayfish> leopard frog> large mouth bass