During which step of the water cycle does water combine with pollutants on Earth's surface?
Precipitation
Transpiration
Evaporation
Runoff
Water is taken in
by animals
Plants take up water
from the ground
Percolation
A. Transpiration
B. Percolation
C. Runoff
D. Precipitation

How do antiviral drugs work? in your own words.

Plz ! a scientist wants to produce a cow that makes a particular human protein in it’s milk the desired protein causes blood to clot and can be used to treat hemophilia (a blood clotting disorder). which of the following would be best for the scientist to use? a. genetic crosses. b. cloning. c. selective breeding. d. genetic engineering.

What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.