They all develop gills, slits and tails
The white blood cell identifies the toxin produced by the pathogen and creates antibodies to fight the pathogen
Oxygen has a partial negative charge, whereas hydrogen had a partial positive charge.
This means that water molecules are polar and can be used to dissolve a lot of chemicals, that's why water is such a popular solvent.
Answer:
The digestive system
Explanation:
Because the food gets dissolve in the digestive system. After it finished dissolving, the body must elimenate it by using the bathroom.
Answer:
The cell must replicated DNA because when the cell divides, the daughter cells must have identical copies of DNA. DNA replication occurs in the S phase during interphase of the cell cycle.
