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32 Cards in this Set

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  • Back
biosphere
all the parts of the planet that are inhabited by living things; sum of all Earth's ecosystems
ecosystem
community of living things plus the nonliving features of the environment that support them
organism
living thing
cell
basic unit of living matter; separated from its environment by a plasma membrane
DNA
the chemical response for inheritance- the passing of traits from parent organisms to there offspring
gene
unit of inherited information in DNA
species
distinct form of life
domain
broadest category used to classify life forms
unicellular
consisting of a single cell
prokaryotic cell
cell lacking a nucleus and most other organelles, the Archaea Domain and Bacteria Domain are made up of these cells
Eukaryotic cells
cell with a nucleus (surrounded by its own membrane) and other internal organelles, the Eukarya Domain is made up of these cells
multicellular
consisting of many cells
Domain Archaea
these organisms are very tiny and are unicellular with prokaryotic cells
Domain Bacteria
these organisms are very tiny and are unicellular with prokaryotic cells
Domain Eukarya
four kingdoms: Kingdom Protista (protists), Kingdom Fungi, Kingdom Plantae (plants), Kingdom Animalia (animals)
these organisms contain Eukaryotic cells
Biological systems
a combination of parts that form a more complex organization. A system has properties that are based on the arrangement and interactions of its parts; these parts cannot function alone(one of the themes of Bio.)
e.g. your liver cannot walk across the yard to eat a stake
Photosynthesis
process by which plants use the sun's energy to convert water and carbon dioxide into sugars
producer
organism that makes its own food (autotroph) and produces organic molecules that serve as food for other organisms in its ecosystem
consumer
organism that obtains food by eating producers (autotrophs) or other consumers
homeostasis
internal stability or "steady state" maintained by the body
adaptation
inherited characteristic that improves an organism's ability to survive and reproduce in a particular environment
population
group of individuals of the same species living in a particular area at the same time
natural selection
process by which individuals with inherited characteristics well-suited to the environment leave more offspring than do other individuals
evolution
generation-to-generation change in the proportion of different inherited genes in a population that account for all of the changes that have transformed life over an immense time
Cellular Basis of Life
all organisms are made of cells. most multicellular organisms have cells that are specialized for different functions. (one of the themes of Bio.)
Form and Function
form fits function
e.g. Birds wings
Reproduction and Inheritance
the ability of organisms to reproduces their own kind and that offspring inherit units of information i.e. DNA
Interaction With the Environment
no organism is completely isolated from its surroundings; b/c it is part of an ecosystem, each organism interacts continuously with its environment
e.g. plants -> photosynthesis (the transfer of chemicals between organisms and their environment
Energy and Life
activities of life require organisms to work; work depends on an energy source to preform
e.g. producers and consumers
Regulation
the ability of organisms to regulate their internal conditions (homeostasis)
e.g. running
Adaptation and Evolution
an inherited trait that helps the organism's ability to survive and reproduce in its particular environment. those that survive pass on the traits i.e. natural selection
Scientific Inquiry
asking questions about nature and then using observations or experiments to find possible answers to those questions