Levels of Organization
A group of individuals belonging to the same species and live in the same area at the same time.
What is a Population?
This is shown on a food web by an arrow and flows in one direction.
What is Energy?
The specific location and function (or job) a species has in an ecosystem.
What is a niche?
The definition of an autotroph.
What is an organism that converts inorganic compounds to food (makes its own food)?
The first species in an area.
What is a pioneer species?
The difference between a Community and an Ecosystem.
What is the addition of physical and non-living elements of an environment (abiotic factors)?
What is the difference between a food chain & a foo web?
A food chain outlines who eats whom. A food web is all of the food chains in an ecosystem.
An example would be humans hunting and eating game.
What is predation?
The process(es) that producers use to make their own food.
What are photosynthesis and chemosynthesis?
A species that has an extremely large impact on an ecosystem- that if removed, the ecosystem would change dramatically.
What is a keystone species?
The most inclusive level of organization.
What is the biosphere?
This is removed from organisms when measuring biomass.
What is water (abiotic matter)?
An example would be a hermit crab that lives in a sea anemone. The hermit crab gains protection from the sea anemone, and the anemone is able to eat the left over food the crab brings in.
What is mutualism?
An example would be a panda bear.
What is a herbivore/primary consumer?
The definition of secondary succession.
What is the replacement of species to an area that has previously had growth?
An example of this level would be the relationships between deer and the plant species it eats in its habitat.
What is a Community?
One is a linear representation of energy flow through an ecosystem and one is more complex and shows more species in each trophic level.
What is the difference between food chains and food webs?
When species live closely together.
What is a symbiotic relationship (symbiosis)?
The reason why decomposers are so important to an ecosystem.
What is the break down of dead organic material and replenishing of nutrients in the soil to be used again by producers?
The organism that aids in denitrification and nitrogen fixation.
What are bacteria?
The order of the levels of organization in Ecology.
What is Individual, Population, Community, Ecosystem, Biome, Biosphere?
The direction in which the arrows in a food web/food chain point.
What is the direction of energy flow (towards the consumer)?
A relationship between two kinds of organisms in which one obtains food or other benefits from the other without damaging or benefiting it. (The symbols +/0.)
What is commensalism?
The organisms that make up the top three/four trophic levels in an ecosystem.
What are consumers?
The competitive exclusion principle.
What is the principle that states that no two species can occupy the same niche in an ecosystem?