Which skin layer that contains hair follicles, sweat glands, sebaceous glands, and nerve endings?

The united states produces an average of 429 billion pounds of food annually. about 133 billion pounds of that food ends up as waste.the percentage of food that the united states wastes each year is %.

About __ of the mass of the cell is water

What are antigens and antibodies? how are they involved in the body’s response to incompatible blood?