Biology
nutrition
the way in which an organism gets its food
autotrophs Vs heterotrophs
autotrophs make their own food(plants via photosynthesis)
heterotrophs take in food from their environment
digestion
physical and chemical breakdown of food
Why is digestion necessary?
allows small molecules of food to be absorbed through the walls of the intestine and transported to each part of the body via the blood
dental formula
2(I2/2 C1/1 P2/2 M3/3)
teeth and functions
incisors: cut and slice food
canines: grip and tear food
premolars and molars: crush and grind food
peristalsis
involuntary muscular contraction