Which is the best example of adaption of many plants found in rain forest

Providing immunity by injecting the body with a weakened form a pathogen is known as

Which best explains why viruses do not have special structures or enzymes that allow them to make their own food? viruses can use energy in living cells that they infect. viruses can replicate inside a host that they infect. viruses can cause contagious illnesses in host cells. viruses integrate their rna or dna into infected cells.

Which organelle breaks down sugar molecules that supply energy to the cell ?