In the previous homework, we considered data from four chemical plants that discharged effluents into streams in the vicinity of their locations. to monitor the extent of pollution created by the effluents and to determine whether this differs from plant to plant, the company collected random samples of liquid waste, five specimens from each plant. the data are given in the accompanying table. plant polluting effluents (lb/gal of waste) a 1.65 1.72 1.50 1.37 1.60 b 1.70 1.85 1.46 2.05 1.80 c 1.40 1.75 1.38 1.65 1.55 d 2.10 1.95 1.65 1.88 2.00 we found that there were differences among these plants. in r, use the tukeyhsd function to determine what differences there are among the plants. what plants are different at family-wise error rate (fwer) 0.05

Aflashlight produces light using energy from the batteries. in which order does the energy change form? a. from chemical to electric to light energy b. from electric to light to chemical energy c. from electric to chemical to light energy d. from light to electric to chemical energy

In what for do plants utilize nitrogen? why do they need nitrogen?

Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.