What environmental factor does the pyramid of energy incorporate that prevents it from inverting? a. population size b. species turnover rate c. biomass at each trophic level d. level of consumption

The carbon cycle is best defined as a process in which a. carbon changes from inorganic forms to organic forms and back b. carbon is changed into other elements such as oxygen or nitrogen c. carbon is continually created from the sun’s energy by plants d. carbon is consumed and regenerated from other elements such as oxygen and nitrogen

When lactate builds up in a runners muscles it causes a burning sensation what causes this to occur

When a cell is in a solution that has the same concentration of water and solutes as its cytoplasm, the cell is said to be in a(n) solution. a. isotonic b. hypotonic c. hypertonic b. facilitated