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Chapt 6 L1 vocab

Chapt 6 vocab

QuestionAnswer
Record of all the fossils ever discovered on Earth. Fossil Record
The impression of an organism in a rock. mold
A fossil copy of an organism made when a mold of the organism is filled with sediment or mineral deposits. cast
The preserved evidence of the activity of an organism. trace fossil
A chart that divides Earth's history into different time units based on changes in the rocks and fossils. Geologic time scale
Event that occurs when the last individual organism of a species 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 among individual members of a species. variation
The process by which organisms with variations that help them survive in their environment live longer, compete better, and reproduce more than those that do not have the variations. Natural selection
An inherited trait that increases an organism's chance of surviving and reproducing in its environment. adaptation
An adaptation that enables a species to blend in its environment. camouflage
The resemblance of one species to another. 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 structure and position but different in function. homologous structure
Body parts that preform a similar function but differ in structure. analogous structure
Body parts that have lost their original function through evolution. vestigial structure
The science of development of embryos from fertilization to birth is called. embryology
Created by: cassius s-c
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