A wheelbarrow is not an example of a pully
Answer:
Para ello, asegura que debe utilizar la almacenada en la presa la Boquilla, en el estado de Chihuahua, en el norte del país.
Explanation:
denadaa
Answer:
Mechanical barriers — which include the skin , mucous membranes , and fluids such as tears and urine — physically block pathogens from entering the body. Chemical barriers — such as enzymes in sweat , saliva , and semen — kill pathogens on body surfaces.
From top to bottom, I believe the answers are:
Biologist
Chemist
Geologist
Hydrologist
