Plants are grown at various population densities under conditions in a . A number of replicates will be set up at to ensure that differences between treatments are not a result of chance. When the seedlings have grown to a certain size, a small number of fungal spores will be placed on in each treatment.

Abeaker of water was heated and then placed on a bench in the laboratory. the water cooled until it was the same temperature as the air in the laboratory. which of these explains the mechanism by which the water cooled? a. heat energy was transferred from the water to the air. b. water molecules from the water formed warm water currents. c. the water molecules absorbed energy from the molecules in the air. d. the water released radiation until it contained no heat energy.