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life science

lesson 1 6

TermDefinition
fossil record is made up of all the fossils ever discovered on Earth
mold the impression of an organism in a rock is called
cast is a fossil copy of an organism in a rock
trace fossil is the preserved evidence of the activity of an organism
geologic time scale is a chart that divides Earth's history into different time units
extinction occurs when the last individual organism of a species dies
biological evolution is the change over time in populations of related organisms
naturalist is a person who studies plants and animals by observing them
variation is a slight difference in an inherited trait of individual members of a species
natural selection is the process by which populations of organisms with variations that help them survive in their environments live longer, complete better, and reproduce more than those that do not have the variations
adaptation is an inherited trait that increases an organism's chance of surviving and reproducing in its environment
camouflage in an adaptation that enables a species to blend in with its environment
mimicry the resemblance of one species to another species is
selective breeding the breeding of organisms for desired char
Created by: star K
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