Lesson 1 intro Flashcards
define biology
study of life
characteristics of life
responds to enviroment, made of cells, reproduce, evolve
define cells
membrane bound compartment in which complex chemical reactions occur and are regulated. can regulate its enviroment through balance of homeostasis
definition of homeostasis
any self-regulating process by which an organism tends to maintain stability while adjusting to conditions that are best for its survival
definition of homeostasis
any self-regulating process by which an organism tends to maintain stability while adjusting to conditions that are best for its survival
define reproduce
vertical transformation of information (genetics/heredity)
what are the three domains of life?
archea, bacteria, eukerya
define archaea
“ancient” bacteria, tend to be extremophiles
name 4 lineages of eukerya
plantia, animilia, fungi, and protists
characteristics of plantia
multicellular, autotrophs, contain cell wall
characteristics of animalia
multicellular, heterotrophs, lack cell wall
define fungi
multicellular(except yeast), heterotrophic, cell wall of chitin
define protists
eukaryotic organisms that arent plants, animals, or fungi. basically everything else
define autotrophs
use inorganic energy to make organic molecules(ie. create its own food using light, water, carbon dioxide, or other chemicals)
define hetertrophs
organism that can’t produce its own food. Instead, they get their nutrition from other sources of organic carbon, like plants or animals