Introduction to Ecology
What is a population
The same species and live in the same area
what is a biotic and abiotic
Biotic and abiotic factors determine the survival and growth of an organism and the productivity of the ecosystem in which an organism lives
what is one of the water cycle definition and what does it mean
Evaporation means process of becoming a vapor liquid to a gas
what are some examples of decompers
Bacteria and fungi are examples of decompers
what is the energy pyramid
a diagram that shows the amount of energy or matter contained within each trophic level in a food chain or web
what is a species
what are biotic factors
living factors that influence an ecosystem like plant and animal life
what is one of the CO2 cycle description
plants release O2 into atomsphere as waste product
what is a parasite
a Parasite is an organism that lives on or in a host organism and gets it food from or at the expense of its host
whats the ecological succession
a series of predictable changes in an environment
what is a community
different populations that live together in a defined area
what are Abiotic factors
Physical, non-living factors that influence an ecosystem Examples-temperature, precipitation, humidity, wind,nutrients,sunlight.
what is the energy flow
The flow of energy through an ecosystem is
one of the most important factors that
determines the ability to sustain life
what is the energy flow
the energy flows through an ecosystem in one direction from the sun to autotrophs and then to heterotrophs
what is the primary succession
succession that occurs on the surface where no soil exists
what is a ecosystem
a collection of all organisms that live in a particular place together with their nonliving environment
what is a habitat
Habitats provide population of wildlife with food,water,shelter and space
what are autotrophs
Captures energy from sunlight or chemicals and use that energy to produce food
what is a food chain
a food chain is series of steps in which organisms transfer energy by eating or being eaten
what are pioneer species
the first species to populate the area
a group of ecosystem that have the same climate and similar dominant communities
what is a niche
A niche is the role the species play, and includes the type of food it eats, where it lives, where it reproduces, and its relationship
what are Heterotrophs
Organisms that rely on other organisms for their energy and food supply
whats the food web
a network of complex feeding relationship among the various organisms in an ecosystem
whats a secondary succession
its a disturbance that destroys the soil like fire