Levels of Organization Flashcards
Tissue (define)
A group of the same type of cells that perform the same function.
Organ
A group of tissues that work together to perform a certain function.
Organ system
A group of organs that work together to perform a certain function. Example: Digestive System. Biotic
Population
A group of organisms of the same species (one type) that live in the same area.
Community
More than one populations that live together in the same area.
Ecosystem
A biological community
Biosphere
Consists of all life on Earth and all parts of the Earth in which life exists
levels of bio organization (amctooopceb)
atom, molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere
Biome
A group of ecosystems with similar climates and organisms
Ecology
the study of interactions between organisms and their environment
Biodiversity
the total of the variety of organisms in the biosphere
Species
a type of organism
producer
organism that captures energy from sunlight; autotroph
consumer
organism that needs others for energy; heterotroph
bio mass
the total amount of living tissue in a trophic level
what is the difference between detritivore and decomposer?
detritivore: eats dead matter
decomposer: breaks down matter
biogeochemical cycles
forms of matter passed from one organism to another
evaporation
when water changes from liquid to atmospheric gas
transpiration
water enters atmosphere by evaporating from leaves and plants
primary productivity
the rate at which organic matter is created by producers
limiting nutrient
when an ecosystem is limited by a single nutrient
where does all energy within a food chain come from?
producers using photosynthesis
What is another name for primary consumers?
herbivores
Which trophic levels are known as carnivores
level 3 and 4
Why do food chains only have about 4 or 5 levels?
Because only 10% of the energy is passed through each level.
What are the carnivores at the top of the chain known as?
Apex predators
Why are omnivores considered level 3
They eat primary consumers
