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17 Cards in this Set

  • Front
  • Back

biological evolution

change over time in populations of related


organisms

cast

fossil copy of an organism in a rock

extinction

when all individuals of a species have died

fossil record

set of all the fossils ever discovered on earth

geologic time scale

chart that divides Earth's history into different time units

isotopes

atoms of the same element that have a different number of neutrons

mold

impression of an organism in a rock

tissue

similar cells that work together and preform a function

trace fossil

preserved evidence of the activity of an organism

adaptation

characteristics of a species that enables the species to survive in its environment

camouflage

adaptation that enables species to blend in with their environments

convince

to overcome by argument

natural selection

process by which populations of organisms with variations that help them survive in their environments live longer, compete better, and reproduce more than those who do not have variations

mimicry

resemblance of one species to another species

naturalist

person who studies plants and animals by


observing them

selective breeding

the breeding of organisms for desired


characteristics

variation

slight difference in the appearance of individual members of a species