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Chapter 6!

QuestionAnswer
made up of all the fossils ever discovered on Earth Fossil Record
Impression of an organism in a rock Mold
a fossil of an organism in a rock Cast
the preserved evidence of the activity of an organism Trace Fossil
a chart that divides Earth's history into different time units Geologic time scale
when the last individual organism of a spices dies Extinction
the change over time in populations of related organisms Biological evolution
a person who studies plants and animals by observing them Naturalist
A slight difference in an inherited trait of a species Variation
the process which populations of organisms with variations that help them survive in their environments live longer, compete better, and reproduce more than those that do not have the variations Natural selection
is an inherited trait that increases an organism chance of surviving and reproducing in its environment Adaptation
an adaptation that enables a species to blend in with its environment Camouflage
the resemblance of one species to another species Mimicry
The breeding of organisms for desired characteristics Selective breeding
the study of similarities and differences among structures of living species Comparative anatomy
body parts of organisms that are similar in structure and position but different in function Homologous structures
Body parts that perform a similar function but differ in structure Analogous structures
body parts that have lost their original function through evolution Vestigial structures
The science of the development of embryos from fertilization to birth Embryology
Created by: MMora!
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