Ch 3/4

Question 1

6 levels of ecological organization

Answer 1

Biosphere, Biome, Ecosystem, Community, Population, Organism

Question 2

Biotic vs Abiotic factors

Answer 2

Biotic: living components of an environment that affect organisms (Food, predators, shelter)
Abiotic: nonliving components of of an ecosystem (Temp, pH, precipitation, sun)

Question 3

Autotrophs vs Heterotrophs

Answer 3

Autotrophs: Get energy from non-living sources (primary producers)
Heterotrophs: Get energy from other living sources (consumers)

Question 4

Trophic levels

Answer 4

organisms position in the food chain
primary producers, primary consumers, secondary consumers, tertiary consumers, quaternary consumers

Question 5

Food webs vs Food chains

Answer 5

Food web: shows all possible feeding relationships
Food chain: diagram that shows pathway of energy transfer

Question 6

Energy pyramids

Answer 6

shows amount of energy transferred between levels

Question 7

Carbon cycle

Answer 7

Photosynthesis, cell respiration, decomposition, fossil fuels, combustion