Ecology Flashcards
What is a herbivore?
An organism that eats plants.
What is an omnivore?
An organism that eats both plants and meat.
What is a decomposer?
An organism that breaks down and eats things on the ground.
What is a carnivore?
An organism that eats meat.
Abiotic
Something that is living.
Biotic
Something that is not alive.
What is a Habitat?
The natural home or environment of an animal, plant, or other organism.
What is the energy pyramid?
The way energy is passed on starting with producers.
What is biodiversity?
The variety of life in the world or in a particular habitat or ecosystem.
What are producers?
Animals that make energy; plants.
Wha is a food web?
Multiple food chains showing what eats what.
What is a food chain?
The relationship between animals in an area showing what eats what.
What is an organism?
Anything living.
What is an ecosystem?
A biological community of interacting organisms and their physical environment.
What is ecology?
The branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
What is emigration?
Members of a population leaving.
What is growth rate?
How fast a population of one species increases.
What is population density?
How many of one species lives in a certain area.
What is the death rate?
How fast animals die due to age, predation or other factors.
What is a hunter gatherer lifestyle?
It is moving around with animals that you hunt; not farming only hunting and gathering.
What is the agricultural revolution?
The sudden surplus of food that allows urbanization.
What is life expectancy?
How long something in a population is expected to live.
What is dispersion?
The spreading of one species throughout an area.
What is a density dependent factor?
Things that control a populations sizzle that can’t be controlled.
What is a density independent factor?
Factors that control population that can’t be controlled.
What is stability?
How long a population can survive with its resources.
What is ecological succession?
The process of change in the species structure over time.
What is primary succession?
Occurring in an environment in which new substrate devoid of vegetation and other organisms usually lacking soil, such as a lava flow or area left from retreated glacier, is deposited.
What is secondary succession?
Community changes which take place on a previously colonized, but disturbed or damaged habitat.
What is disturbance?
Temporary change in environmental conditions.
What is a pioneer species?
The first to colonize previously disrupted or damaged ecosystems.
What is a climax community?
A stable mature community that has adapted to its enviorment.
What is inbreeding?
The mating of closely related individuals.
