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Organization
How ecosystem works
Energy in Ecosystem
Food Chains and Web
Cycling of matter
100
An individual living thing, such as an alligator.
What is an organism?
100
Living things (such as plants and animals) in a area.
What is a biotic factor?
100
These organisms can make their own food AKA AUTOTROPHS.
What are producers?
100
producer -> herbivore -> carnivore
List three trophic levels in order based on the flow of energy.
100
Also known as the water cycle, is the circular pathway of water on Earth from the atmosphere, to the surface, below ground, and back.
What is the hydrologic cycle?
200
A group of different species that live together in one area.
What is a community is ecology?
200
Nonliving things (such as moisture, temperature, wind, sunlight, and soil) in an area.
What is an abiotic factor?
200
Organisms that get their energy by eating other living, or once-living resources (such as plants and animals) AKA HETEROTROPHS.
What are consumers?
200
Carnivores that eat secondary consumer; the highest up on the trophic level system.
In terms of trophic levels, what is a Tertiary Consumer?
200
The movement of a particular chemical through the biological and geological, or living and nonliving, parts of an ecosystem.
What is a biogeochemical cycle?
300
All of the living biotic and abiotic factors that work together in a given area.
What is an ecosystem?
300
This relationship makes an ECOSYSTEM.
What is called when abiotic and biotic factors work together?
300
One eats only plants, while the other, eats only animals.
What is the difference between a herbivore and a carnivore?
300
Herbivores, because they are the first consumer above the producer trophic level.
In terms of trophic levels, what is a Primary Consumer?
300
1) Oxygen (oxygen cycle) 2) Carbon (carbon cycle) 3) Nitrogen (nitrogen cycle) 4) Phosphorus (phosphorus cycle)
What are four essential elements for life that cycle through an ecosystem.
400
A major regional or global community of organisms.
What is a biome?
400
A species that has an unusually large effect on the ecosystem it's in.
What is a keystone species?
400
Organisms that eat detritus or dead, organic matter. Acceptable examples include: millipedes, slugs and snails, dung beetles, dung flies, burying beetles, earthworms, bee-maggots, crabs, and vultures.
What is a detritivore and give an example?
400
Carnivores that eat herbivores in a trophic level system.
In terms of trophic levels, what is a Secondary Consumer?
400
This is a diagram amongst organic matter, that compares energy used by producers, primary consumers, and other trophic levels.
What is the Energy Pyramid?
500
Biome -> Ecosystem -> Community -> Population -> Organism
What are the levels of organization in ecology from the greatest scale to the least?
500
The assortment, or variety of living things, in an ecosystem.
What is biodiversity?
500
A detritivore that breaks down organic matter into simpler compounds.
What is a decomposer?
500
1) A sequence that links species by their feeding relationships. 2) A model that shows the complex network of feeding relationships and the flow of energy within and sometimes beyond an ecosystem. The second shows all the connections in an ecosystem while the first only follows the flow from a specific set of organisms.
Define 1) food chain and 2) food web. Then explain the difference.
500
A measure of the total dry mass of organisms in a given area.
What is a biomass?