Needs of Living Things Flashcards
Autotrophs
↠Can make their own food
↠Ex: plants, some protists, and some bacteria
Heterotrophs
↠Can’t make their own food
↠Ex: all organisms that can’t do photosynthesis
Energy
↠Living things get energy that is stored in “food”
Homeostasis
↠The maintenance of stable internal conditions in organisms
↠Ex: Human body temp. is 98.6 °F/ 37 °C
↠Ex: A barnacle can keep its body moist until the next high tide
Metabolism
↠Sum of all chemical reactions in an organism
Organism
↠Any living thing
Water
↠Dissolves chemicals
↠Needed for most chemical reactions
↠Gets nutrients to cells
↠Dissolves waste
Living Space
↠All organisms need food, water, and shelter in their environment.
↠Organisms can share the same space or the can compete for space.