Which element is most important for adding strength to hair, feathers, and outer skin?

oxygen

hydrogen

sulfur

phosphorus

Gender is determined by X's and Y's. Which of the following is the code for a male?

The main difference between deserts and steppes is the

Which is the correct sequence of events in cellular respiration? A) electron transports, Krebs Cycle, Glycolysis B) glycolysis, Krebs Cycle, electron transports C) Krebs Cycle, Electron Transport, Glycolysis D) Krebs Cycle, Glycolysis, Electron

The only carbohydrate in the homemade fruit smoothie comes from naturally occurring sources of milk and fruit sugar.

Which pair of terms best describes a wooden table? A. biotic and nonliving B. biotic and living C. abiotic and nonliving D. abiotic and living

Compare and contrast a plant cell with an animal cell. Make sure you give at least two comparisons and two differences.

Explain why a cell needs to break down atp

Was the cutlass a pony car or muscle car

What type of selection favors the average individuals in a population

Which of the following ideal criteria for elimination of a disease is addressed by the following statement: Hepatitis B may establish a chronic infection that can lead to transmission of the disease even in the absence of symptoms? A.