29 terms

Biology - Unit 8 Vocabulary

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Terms in this set (...)

Levels of organization
Individual, population, community, ecosystem, biome, and biosphere
Individual
Living thing of a single species
Population
Group of organisms of same species
Community
Populations that live together
Ecosystem
Community and non-living surroundings that live together
Biome
Group of ecosystems with same climate and similar dominant communities
Biosphere
Contains ALL ecosystems and biomes
Biotic
Describes living factors in the environment
Abiotic
Describes the nonliving part of the environment (including water, rocks, light, and temperature)
Biodiversity
Variety of living things in an ecosystem
Keystone Species
Species that is critical to the functioning of the ecosystem and has a very large effect on its ecosystem
Ecology
Study of ecosystems
Autotrophs
Organisms that make their own food
Photoautotrophs
Use light energy from the sun to produce food
What is the main source of energy for our planet?
Sunlight
Chemoautotrophs
Organisms that use inorganic chemicals as their energy source
Heterotrophs
Organisms that obtain energy from the food they consume
Producers
the source of organic compounds for all non-autotrophic organisms
Consumers
Live on compounds produced by autotrophs
Herbivore
Eater of plants
Carnivore
Eater of meats
Omnivore
Eats everything
Decomposer
Able to take dead material and turn it back into soil
Primary Producer
Anything that can make its own food
Primary Consumer
A consumer that only eats producers
Secondary Consumer
A consumer that only eats primary consumers
Tertiary Consumer
A consumer that only eats secondary consumers
Food Chain
One snapshot of an eating diagram (one direction)
Food Web
Complex eating diagram (many directions)