Unit 12: Organisms and Their Environment

6.12e: describe biotic and abiotic parts of an ecosystem in which organisms interact; and

6.12f: diagram the levels of organization within an ecosystem, including organism, population, community, and ecosystem.

Guiding Questions

1. What are the levels of organization within an ecosystem?

2. How does an organism interact with its environment?

3. How are comparative and descriptive investigations used in science?

Google Drive File For Flat Pat Pictures


matter - anything that has mass and volume
abiotic - nonliving matter
biotic - living, or once was living matter
organisms - one individual
populations - a group of organisms that are the same species
niche - a job/role an organism plays in its habitat
commensalism - a symbiotic relationship where one organism benefits and the other is not affected
prokaryotic - a cell without a visible nucleus
eukaryotic - a cell with a visible nucleus
unicellular - an organism composed of only one cell
multicellular - an organism composed of 2 or more cells
autotrophic - an organism that makes its own food through photosynthesis
habitat - where an organism lives; its home
mutualism - a symbiotic relationship where both organisms benefit
heterotrophic - an organism who must get nutrients from other organisms
kingdom - a large classification of living organisms (Archaebacteria, Eubacteria, Protists, Fungus, Plants, Animals)
communities - 2 or more populations that live in an area
classification - to put into groups
domains - classifications even larger than kingdoms (Bacteria, Archae, Eukarya)
parasitism - a symbiotic relationship where one organism benefits and one is harmed


Important Links

Biotic & Abiotic Factors in Ecosystems

Food Chains / Trophic Levels


The Unknown World - PBS (NOVA)

Interesting Animal Interactions with the Environment

Exploring Ecosystems
Biotic or Abiotic Baseball
Soccer Biotic or Abiotic
Food Chains Game
Bigger Food Chains Game
Build A Food Chain
Fun With Food Webs