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ML Chapter 3

The amazing person that made this StudyStack Ashley B-Modified by Mr. W
Ecology The scientific study of interactions among organisms and their environment
species a group of similar organisms that can breed and produce fertile offspring
population a group of individuals that belong to the same species and live in the same area
community all the interacting living components of an ecosystem, think food web, symbiotic relationships, competition, etc
habitat place where the species live
ecosystem all the organisms that live in an area with their physical environments
biome a group of ecosystems that share a similar climate and have a typical types of biodiviersity
biotic factors anything living in an environment
abiotic factors any nonliving part in an ecosystem
environment all conditions or factors surrounding an organism
observation first step to ask about technology
experimentation used to test hypothesis
models pictures, diagrams, computer programs, etc that are used to help explain a concept and can be used to make predictions
Autotroph/primary producers use the sun to make there own food
chemoautotrophs chemical energy is used to produce carbohydrates
photosynthesis captures light energy and uses it to power chemical reactions to turn carbon dioxide and water into sugar and oxygen
heterotrophs rely on other organisms for their energy
consumer those eat other organisms
herbivores eats plants
omnivores eats both plants and animals
carnivores eats animals
detritivores feed on detritus often obtaining extra nutrients from the bacteria,algae, and other microorganisms that grow on and around it
decomposers feed by chemically breaking down organic matter
scavengers animals that consume the carcasses of other animals that have been killed by predators or have died of other causes
food chain a series of steps in which organisms transfer energy by eating and getting eaten
foodweb network of complex interactions formed by the feeding relationship among various organisms in an ecosystem
phytoplankton floating algae
zooplankton diverse group of small swimming animals
trophic level each step of the food web or food web
ecological pyramids show the amount of energy or matter contained within each trophic level
energy pyramid a model that shows the distribution of energy in an ecosystem.
10% rule the process in which 10% of the energy in each trophic level gets passed on to the next
trophic cascade is when one disruption to the food web causes a chain of events to happen
biogeochemical cycles closed loops that elements pass from one organism to the next through
water cycle the process of how water moves
condensation the conversion of a vapor or gas to a liquid
precipitation rain, snow, sleet, or hail that falls to the ground
transpiration process where plants absorb water through the roots and then give off water vapor through pores in their leaves
evaporation process of a substance in a liquid state changing to a gaseous state due to an increase in temperature and/or pressure
respiration breathing
nutrients a substances that are essential for growth and maintenance of life
carbon/oxygen cycle process of carbon dioxide/oxygen changing forms as it is used in the ecosystem
equation of life 6H20 + 6CO2 <--->C6H12O6 + 6O2
nitrogen cycle the process of Nitrogen changing form and being conserved as it is used in the ecosystem
nitrogen fixation/ammonification turning gaseous nitrogen into a form that can be used by bacteria and other life forms
denitrification the process of bacteria converting nitrogen gas into ammonia
assimilation turning inorganic nitrogen into organic forms(nucleic acids and proteins)
bacteria are microorganisms important for the nitrogen cycle and decomposition
phosphorus cycle the process of rocks and sediments wearing down and releasing phosphorus
dissolved phosphorus ionic phosphorus dissolved in the water.
limiting nutrients any nutrient that a lack there of will prevent growth or life
stream chemistry all the different chemical properties that affect the quality of the aquatic environment.
parameters the acceptable range of different properties of the stream
pH a figure expressing the acidity or alkalinity of a solution on a logarithmic scale
buffer a solution that resists changes in pH when acid or alkali is added to it
DO the amount of gaseous oxygen (O2) dissolved in the water
dead zones a place with no life as a result of a lack of O2
hypoxia a deficiency in O2
pollution the presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects.
fertilizers a chemical or natural substance added to soil or land to increase its fertility
nutrient loading increasing the level of nutrients to the environment at a level faster than they can be consumed in a healthy ecosystem
discharge the amount of water that passes a point during a certain period of time.
eutrophication excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen
concentration the measure of the amount of a solute(nutrient or pollutant) in a solution
nitrification process of turning ammonia or ammonium to nitrates
biospere the earth
Created by: mrwillsshs
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