Hunting and gathering societies
a) employ about 15% of the world's people
b) are found in isolated places in the world
c) are characterized by large concentrations of people
d) occur nearly everywhere but are especially common in europe
e. are always found alongside commercial agriculture

Which statement best describes lymph? a. a clear fluid that carries proteins, water, white blood cells, fat, dead cells, and toxins that drain from the fluid between the cells of the body b. a clear fluid in the cells that to secrete and transport hormones from one region of the body to another c. a thick, opaque, and yellowish fluid that is present when there is an infection in the body d. a clear, liquid component of blood that contains red blood cells, white blood cells, platelets, and iron