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invitation to bio

41 cards·by michaelamaclin
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atom
fundamental building block of all matter
development
first cell of a new multicelled organism gives rise to an adult
biosphere
all regions of earth where organisms live
cell
smallest unit of life, consist of cells
community
consist of populations
ecosystem
a community interacting with its environment
molecule
consist of atoms
dna
carries hereditary info that guides devel and other activities
population
consist of organisms
only living things make
lipids proteins dna rna and complex carbohydrates
homeostasis
organism keeps its internal condition within tolerable ranges by sensing and responding to change
inheritance
transmission of dna to offspring
energy flows
one way
nutrients flows
In a cycle
internal environment
internal environment
archaea
single celled organisms that lack a nucleus, closely related to eukaryotes than to bacteria
bacteria
the most diverse and well know single celled organisms that lack a nucleus
biodiversity
scope of variation among living organisms
eukaryote
organism whose cells have a nucleus
fungus
single celled or multicelled eukaryotic consumer that breaks down material outside itself, then absorbs nutrients
prokaryote
single celled organism with no nucleus
protists
diverse simple eukaryotes
taxonomy
naming and classifying species
nucleus
saclike structure containing cells dna
Linnaean system
every species is given a unique two part scientific name
genus
species that share a unique set of traits, name always italicized
taxon
organism that share a unique set of traits
taxonomic class
domain kingdom phylum class order family genus species
six kingdom class
bacteria archaea protists plants fungi animals
three domain class
bacteria archaea eukarya
control group
the treatment being tested
experimental group
receive a certain treatment
scientific method
making testing and evaluating hypotheses
variable
characteristic or event that differs among individuals or over time
sampling error
difference between results obtained from a subset and results from the whole
statistically significant
result that is statistically unlikely to have occurred by chance alone
subset
when researchers cannot directly observe all individuals of a population
law of nature
consistent natural phenomenon for which there is incomplete scientific explanation
scientific theory
hypothesis that has not been disproven after many years of testing
researchers minimize sampling error by
using large sample sizes
organisms require
nutrients and energy