How have computer models helped farmers lessen their toll on the environment? •they help control land disputes and legal battles.
•the help regulate spending and production.
•they help manage nutrients and water consumption.
•they help predict infestations and droughts.

Patricia is told by her physician that her body and brain chemistry have physically adapted to the drug and that she has become dependent on the tranquilizers prescribed for her by another doctor.

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

(amoeba sisters video recap: pedigrees and need