Definitions I
Define Producer
The organism within a food chain that produces its own food source through photosynthesis.
Define Food Chain
The feeding sequence of organisms indicating the flow of energy as one species is consumed by the next.
Define Autotrophs
Organisms that produce their own food.
What type of organisms go through photosynthesis?
Plants.
How much energy is transferred from one trophic level to the next?
10%
Define Heat Loss
Loss of energy.
Define Food Web
The connection of all the individual food chain within a community.
Define Heterotrophs
Organisms that can't produce their own food.
What type of organisms go through cellular respiration?
Plants and animals.
Primary Producers are the foundation of what?
Energy flow.
Define Decomposer
An organism that breaks down organic matter.
Define Biomass
The total quantity of weight of organic material in an ecosystem, or plant material used as an energy source.
Define Biotic
Living organisms.
What is the other term for Cellular Respiration?
Aerobic Respiration.
Decomposers consist of what TWO organisms?
Fungi and bacteria.
Define Trophic Level
A group of organisms within an ecosystem which fill the same level within a food chain.
Define Ecological Pyramid
A graphic representation of the relationship between organisms at different trophic levels in an ecosystem.
Define Abiotic
Climate, soil type, slope angle and non-living things.
What are all of the limiting factors of photosynthesis?
Availability of water and sunlight, concentration of carbon dioxide, and temperature.
Give an example of one of the four processes that organisms lose energy.
Waste Production, Respiration, Reproduction, or Growth.
Define Limiting Factor
Anything that may slow population growth or constrain population size.
OR
Any factor that can slow or reduce the change of an event occurring.
Define Photosynthesis
The process by which plants synthesize glucose using carbon dioxide, water, and energy from sunlight.
Define Cellular Respiration
The chemical reactions in which cells that break down glucose molecules and release energy, carbon dioxide and water.
What is the chemical formula for Photosynthesis or Cellular Respiration?
P: 6CO2 + 6H2O > C6H12O6 + 6O2
R: C6H12O6 + 6O2 > 6CO2 + 6H2O
What do the lines on a food chain/web represent?
The availability/transfer of energy.