Famer Fran uses pesticide in her sugar cane field. It is successful for five years, but after year six the crops begin to die off. What could have happened?

True or false mass is measured in pounds

When analyzing three genes that reside on the same chromosome, the expected frequency of double-crossover events can be determined by multiplying the frequency of single crossovers between each pair of genes.

The bacteria that produce food from the chemicals in the water surrounding hydro thermal vents deep in the ocean are?

Why are the fish able to survive in the pond? 1) The fish use carbon dioxide produced by the plants. 2) The fish use oxygen produced by the plants. 3) The plants use oxygen produced by the fish. 4) The plants use chlorophyll produced by the fish.

What is the benefit to using tissue cultures with cancer patients? Doctors can study how quickly cancer spreads in the culture so they know what medicine to use. Medications can be tested on the cancer culture before being injected into the patient.

What type of bond forms between a slightly positive hydrogen atom in one molecule and a slightly negative atom in another molecule

What type of soil permeability is most desirable for agricultural land? very slow rapid moderate?

What feature of alcohol fermentation makes it more suitable for the baking process than lactic acid fermentation? A. Alcohol fermentation is a faster process than lactic acid fermentation. B.

What are the two zones of an aquifer? a.) capillary fringe and water table b.) zone of saturation and zone of unsaturation c.) zone of aeration and zone of unsaturation d.) zone of unsaturation and water table

The only cytoskeletal fibers not associated with intracellular movement or whole cell locomotion are the