- A population is a group of organisms from the same species inhabiting a single area.
- An organism community consists of all different populations living within the same area.
- An ecosystem consists of the abiotic (non-living) environment and the organism community that exists within this environment.
- A producer is a plant, alga, or cyanobacterium that produces sugar via photosynthesis.
- In photosynthesis, carbon dioxide and water are used to produce oxygen and sugar with the help of solar light energy.
- A nutrient is a type of chemical substance that plants need to grow.