| Example | Process |
| Relationship in which one organism benefits while the other neither benefits or is harmed | |
| Breaking down sugars to produce ATP | |
| Copying DNA for protein synthesis | |
| After the blastula stage in embryo formation - the beginnings of a body cavity | |
| Relationship in which an organism aids another for no benefit to itself | |
| Conversion of sugars into cellular energy producing ethanol and carbon dioxide | |
| When two gametes meet to form a zygote | |
| Evaporation of water from stomata in plants | |
| When an organism reacts to a change in their environment | |
| Mechanical and chemical breaking down of food | |
| Chemical reactions that occur in living organisms to maintain life | |
| When heritable traits that make it more likely for an organism to survive and successfully reproduce become more common in a population over time | |
| When an animal physically develops after birth (steps in development) | |
| Causes an organism to develop its shape | |
| Asexual reproduction that occurs without fertilization by a male | |