Ecological Organization and Biomes
The study of interactions between different organisms and organisms and their physical environment.
Ecology
Producers and Consumers differences
Producers- makes their own food
Consumers- have to consume or eat others for food.
What is a food chain?
the feeding relationships and energy flow between species in an ecosystem
what are the three biogeochemical cycles
carbon/oxygen cycle
nitrogen cycle
water cycle
volcanic eruptions or glaciers melting
primary succession
Definition of Terrestrial
found on land
What organisms are on the first level of the tropic levels?
produces
What is the difference between a food chain and a food web?
food web is a group of interconnected food chains
bacteria convert nitrates to N2 gas to be released back into the environment
Denitrification
what is the difference between primary and secondary succession
primary - occurs in an area never colonized
secondary - occurs when an area was disturbed
Sun, water, soil, temperature
Abiotic factors
What is a Heterotroph?
Consumers
What is symbiosis?
an interaction between indivduals of different biological species
what role do bacteria play in the nitrogen cycle
bacteria convert nitrogen so organisms can use it again
organisms introduced to a new area with few predators to control a population
invasive species
Levels of organization--smallest to broadest
Organisms
populations
communities
ecosystems
biomes
biosphere
How much energy is lost between the levels?
90%
one organism benefits and the other is neither harmed nor affected
commensalism
what role does cellular respiration play in the carbon/oxygen cycle
consumers take in glucose and oxygen and release carbon dioxide into the atmosphere
carbon dioxide, nitrous oxide, water vapor, and methane
greenhouse gasses
What biome do we live in?
Deciduous Forest
What consumer is on the 3rd trophic level?
Tertiary
one organism benefits (parasite) and the other is harmed (host)
parasitism
when water soaks into the ground and fills spaces in rocks and sand
percolation
what does the greenhouse effect result in
it can raise the average global temperature in a process called "global warming"