What is the genotype of a human female? a) xx b) xy c) yx d) yy

At which point is crust neither created nor destroyed? island chain mid-ocean ridge divergent boundary transform boundary

Which of the following molecules can be broken down into simple sugars? a. nucleic acid b. protein c. lipid d. carbohydrate

What are some of the immune functions of the lymphatic system? a. cleaning red blood cells from the blood and creating lymph fluids b. transporting lymph to the tissues and creating lymph fluids c. removing infectious agents and making white blood cells d. making red blood cells and removing infectious agents