Consumer
Organisms that use other organisms for food
Producer
Organisms that use sunlight to make their own food
Sun
Primary source of energy in most ecosystems
Photosynthesis
Process of turning light energy into chemical energy
Community
Populations of organisms living in interacting in one place
Exponential growth
Population doubling every generation
Ecology
The study of living in nonliving parts of the environment and how they affect organisms environment and how
Sampling
Technique to find population size
First order consumer
Consumer in a food chain that eats the producers
Herbivore
Eats only plants
Omnivore
An organism that eats both plants and animals
Food web
Shows the interactions between a wide variety of organisms in an environment
Biomass pyramid
Shows the mass of the consumer tissues supported by each level of below it
Population
A collection of individuals of all one species living in a specific area
Birthrate
The rate in which reproduction increases in a population
Carrying capacity
The maximum number of individuals that a stable environment can support indefinitely
limiting factor
Factors that limit the growth of a particular population
density independent
a birth rate or death rate that does not change with population density
density dependent
a death rate that rises as population density rises