- cells are basic units of structure and function in living things
- microscope made it possible for people to discover and learn about cells
- all living things are composed of cells
B. Location near headwaters
C. Lack of meanders
D. A low stream gradient
i think i would say (D) A low stream gradient
B. The internal structures provide shape and support to a variety of living organisms-both unicellular and multicellular.
C. They help scientist classify all living organisms by the types of cells they are made of.
D. The combination of chemical functions and genetic material enable the cell and the organism to live,grow,and reproduce.
Answer:
Exercising
Explanation:
This happens because, when you exercise, the blood vessels in your muscles dilate (vasodilation) and as a consequence, the rate of blood flow is faster. The increased blood flow delivers more oxygenated blood to the working muscle.