Habitat: the environment inwhich a species normally lives or the location of a living organism
Species: a group of organisms that can interbreed and produce fertile offspring
Population: a group of organisms of the same species who live in the same area at the same time
Community: a group of populations living and interacting with each other in an area
Ecosystem: a community and its abiotic environment
Ecology: the study of relationships between living organisms and between organisms and their environment
Autotroph: an organism that synthesizes its organic molecules from simple inorganic substances
Heterotroph: an organism that obtains organic molecules from other organisms
Consumer: an organism that ingests organic matter that is living or recently killed
Detritivore: an organism that ingests non-living organic matter
Saprotroph: an organism that lives on or in non-living organic matter, secreting digestive enzymes into it and absorbing the products of digestion.
Unexpected diets (p. 176)
1) The Venus fly trap, ghost orchid, and euglena are autotrophic.
2) The Dodder (some are photosynthetic); euglena, ghost orchid (some are photosynthetic) are heterotrophic.
3) Out of these heterotrophic organisms, the dodder and euglena are consumer;and the ghost orchid is the saprotroph.