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20 Cards in this Set

  • Front
  • Back
what is the biosphere?
any part of the globe where living things reside.
examples:land, water, ocean, atmosphere
what is a ecosystem?
community of living things along with non-living things.
examples:all animals, bacteria, air, water, soil
What is a community?
all the living things in the area
What is an organism?
an individual living thing. ie:sloth, iguana, bacteria cell
what are cells?
basic unit of life(structure and functional unit)
What is DNA?
Entire double helix(consists of genes and non-coding regions)
What are genes?
a sequence of DNA that codes a protein(protein leads to physical traits)
what is a species?
a distinct form of life.
what is a domain?
broadest category used to classify life forms
what does unicellular mean?
one celled organisms.
what is prokaryotic?
cell without a nucleus.
what is eukaryotic?
cell with a nucleus.
what is a system?
a combination og parts that form a more complex organization.
what is photosynthesis?
plants use the sun's energy to convert water and carbon dioxide into sugars
what are producers?
organism that makes its own food.
what is a consumer?
obtains food by eating producers and/or consumers
what is homeostasis?
"steady state" maintained by body.
what is adaptation?
a physical feature that helps an organism survive and reproduce in its enviorment.
what is natural selection?
differential reproductive success.
what is evolution?
a generation to generation change in the proportion of different inherited genes in a population. ie: a change over time