Which of the following is NOT a resource that organisms fight over for survival? Reproduction
Food
Water
Oxygen
Shelter

Jerry wants to consume no more than 45% of his calories from carbohydrates. calculate his requirement for calories from carbohydrates based on a 2,500 kcal per day intake.

Which of these is the most likely consequence of falling petroleum price

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation