quiz Flashcards
observations and experiments
must be repeatable
negative feedback
the more a product accumulated the process that creates it slows down and produces less
structure/function
if you change the structure you change the function
how is energy stored
chemical, kinetic, light, thermal
science cannot
support or falsify supernatural explanations which are outside the bounds of science
how does energy cycle through an ecosystem
energy enters as light and exits as heat
reductionism
the reduction of complex systems to simple components that are more manageable to study
levels of organization
biosphere-ecosystems-communities-populations-organisms-organs-tissues-cells-organelles-molecules
positive feedback
when a product accumulates the process that creates it speeds up and creates more of the product
bacteria
single cells no nucleus most ancient lineage
three domains
eukarya bacteria archaea
archaea
single cells no nucleus evolutionary like eukaryotic
eukarya
single and multi celled. had a nucleus, plantae, fungi, animalia
what did darwin observe
he observed individuals in a population have traits that vary
competition is inevitable
species generally suit their environment
more offspring are produced than survive
inductive reasoning
repeat specific observations can lead to important generalizations
deductive reasoning
uses general premises to make specific predictions
hypothesis
must be testable and falsifiable
evolution
a change in gene frequency over time
biologists ask questions like
how a single cell develops into an organism
how the human mind works
how living things interact in communities
goal of technology
to apply scientific knowledge for some specific purpose
goal of science
to understand natural phenomena
theory
broader scope than a hypothesis. generally leads to a new testable hypothesis
living thing characteristics
order
heterogenous
adapted
respond the environment
regulate
reproduce
grow and develop
process energy
metabolize
