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Science

TermDefinition
fossil record is made up of all the fos-sils ever discovered on Earth
mold sediments can later fill in the mold and harden to form a cast.
cat 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 specides dies.
Biological evolution is the change over time in populations of related organisms.
comparative anatomy is the study of similarities and differences among structures of living species.
homologous structures (huh MAH luh gus ) strctuctures rae boddy parts fo organisms. that are similar in structure and position but diffenet in function.
analogous structure is the study of similarites and differences among structures of living species.
vestigial structure ( veh STIH jee ul structures are body parts that hove lost their original function through evolution.
embryology the science of the development of embryos from fertilization to birth is called embryology (em bree AH Iuh jee.)
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 pro cess by which populations of organisms with variations that help them survive in their environments live longer,
adaptation is an inherited trait that increasesan organism's chance of survuving and reproducting in its environment
mimicry MIH mih kree camouflage and mimicry are adaptaions that help species being eaten
selective breeding like many domestic plants and animals produced from selective breeding.pigeons look dif-ferent from their ancestors.as shown
Created by: Arcadio
 

 



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