Which of the following are part of the body s first line of defense against pathogens?
a. white blood cells
b. red blood cells
c. lymph nodes
d. mucous membranes

Most of earth’s fresh water is found in oceans and seas stored in glaciers and ice caps groundwater stored beneath the surface found in lakes, rivers, streams, and reservoirs

How do adaptation affect a species?

Amniocentesis is a process in which amniotic fluid is taken from the mother's womb to identify any genetic abnormalities in the fetus. how would the discovery of the human genome contribute to this process?