If earths average surface temperature continues to change over the next thirty years at the same rate it changed between 1980 and 2010, the average temperature will most likely be around

About __ of the mass of the cell is water

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

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