Photosynthesis
The process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.
Cellular Respiration
The process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.
Ecosystem
A biological community of interacting organisms and their physical environment.
Biodiversity
The variety of life in the world or in a particular habitat or ecosystem.
Homeostasis
The tendency of a biological system to maintain stability while adjusting to conditions that are optimal for survival.
Niche
The role or function of an organism or species within an ecosystem, including its habitat, resource use, and interactions with other species.
Mutation
A change in the DNA sequence of an organism's genome that can lead to variations in traits.
Natural Selection
The process by which organisms better adapted to their environment tend to survive and produce more offspring.