What are three strategies used by organisms in the crown of the continent that are used to acquire and use energy

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

Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above