Bio 20-1 Chapter 1-2 Quiz

• 1.Energy cannot be created or destroyed, only transferred
• 2.Energy transfer results in energy loss

Amount of energy going through trophic levels, will always be a straight pyramid

The total dried mass of living materials in an area. Used to see the amount of nutrients circling through

The number of organisms represented in trophic levels

• Pyramid of numbers
• Pyramid of biomass
• Pyramid of energy

Anytime energy is transferred it is reduced, as 90% is passed out as heat and on feces only about 10% moves on

6co2 + 6h2o + 3h2S = c6h12o6 + 3h2SO4

Plants turn sunlight into food. 6co2+6h20 = c6h12o6 + 6o2

ecosystem, species and genetic

A more complex, non linear food chain

How energy flows through an ecosystem, (producer first, then consumers)

Feeds on others

Self feeding

A species that is extremely sensitive to change in ecosystems, used as a early warning system. i.e, frogs breath through there skin and would breath in chemicals easily,

Reducing an organisms biodiversity so there is only one type. i.e (corn, apples)

The number of different species in a ecosystem, higher the biodiversity the better

The community of an environment as well as the abiotic things

When one or more population of different species live and interact in a shared habitat. Biotic only

A group of individuals of the same species, living in the smae place at the same time

Energy(jewels)is lost at every step of the chain, producers start with 1000j and the consumer only gets 10% energy from the producer (10% rule)

A linear order of who eats who

Biotic beings that eat producers or other consumers, are dependant on others energy to live. Play an important role in pop control.

Biotic beings capable of making their own food for nutrients. Mainly plants and use the sun. Some make food from chemicals like sulfur(chemsynthesis)

Non living thing

Living thing

• Lithosphere (land)
• Hydrosphere(water)
• Atmosphere(air)

The tiny area in earth life can exist, both above and under ground, 20km to -70km

Theory that small changes in the world are constantly happening without disturbing the ecosystem

All living and non-living things interact with each other on our planet