Answer:
fossils, anatomy, molecular biology, direct observation, biogeography
Explanation: i think theres 5 . hope this helpss
When an animal eats, food stays in the stomach for a period of time. When a unicellular organism, such as Paramecium, takes in food, the food is contained in which organelle? Amino acids link together by peptide bonds to form proteins.
Hydrophobic heads face the inside while the hydrophilic tails face the outside