Characteristics of living things
All living things are made of
these smaller living units.
Cells
The mistaken idea that living
things arise from nonlinving
sources.
Spontaneous Generation
A group of similar organisms
that can mate and produce
offspring and their offspring
can also mate and reproduce.
Species
Single-celled prokaryotes with
no nucleus that produce
toxins that can make people
sick.
Bacteria
organisms that can make their own food
autotrophs
The most common chemical in cells
water
The type of reproduction in
which an organism creates an
identical offspring with only
one parent.
asexual reproduction
A group of similar, closely related species
genus
Cannot be classified as
animals or plants; most are
harmful parasites.
Protists
heterotrophs
change that leads to maturity
development
They type of reproduction in
which two parents combine
their DNA to create an
offspring.
sexual reproduction
The naming system developed
by Linnaeus in which each
organism is given a unique,
two-part scientific name.
Binomial Nomenclature
A tiny, nonliving particle that
reproduces inside a living host
cell.
virus
The maintenance of internal stable conditions
homeostasis
Any change or signal in the
environment that can make
an organism react.
stimulus
This scientists disproved
spontaneous generation by
showing maggots on meat
came from flies laying eggs.
Francesco Redi
In classification of organisms,
the broadest level of
organization.
Domain
Heterotrophs that feed by
absorbing food through their
cell walls; responsible for
athlete's foot and ringworm.
fungi or fungus
Organisms (including
humans) which have nuclei
containing DNA belong to this
domain.
eukarya or eukaryotes
What do organisms need to
power their cells?
energy
This scientist disproved
spontaneous generation by
showing that bacteria did not
grow in flasks with unbroken
necks.
Louis Pasteur
What two words form an
organism's scientific name?
Genus and species
Organisms that are so small
you need a microscope to see
them.
microorganisms
organisms that do not have nuclei in their cells
prokaryotes