19. The immune system is the network of organs, tissues, and white blood cells that defend against
disease.
a. True
b. False

Melissa lives in a town called greendale. she discovers that when she lights a match and holds it near her kitchen faucet, the little flame grows into a larger fire. melissa is surprised because she thought the water would extinguish the flame rather than ignite it further. her mother tells her that the water might be contaminated with dissolved methane, a primary component in natural gas. melissa investigates the matter and finds that cases of methane contamination started shortly after a company began fracking for natural gas in the area. based on this information, which three statements are plausible consequences of fracking in greendale?

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

What is the correct term for an area of rotating currents in an ocean? when ocean currents combine, they create an area of rotating currents called an