6.1
Is made up of all the fossils ever discovered on Earth.
Fossil Record
__________ occurs when the last individual organism of a species dies.
Extinction
A ________is a person who studies plants and animals by observing them.
Naturalist
The breeding of an organism for desired characteristics is called....
Selective breeding
__________ ___________ is the study of similarities and differences among structures of living species.
Comparative anatomy
The impression of an organism in a rock is called the___________
mold
A ___________ is a slight difference in an inherited trait of individual members of a species.
variation
______ _______ are body parts of organisms that are similar in structure and position but different in function.
homologous structures
A _______ is a fossil copy of an organism in a rock.
cast
This is the 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 the variations.
Natural Selection
___________ ___________ are body parts that have lost their original function through extinction.
Vestigial structures.
The ________ is a chart that divides Earths history into different time units.
geologic time scale
An _________ is an inherited trait that increases and organisms change of surviving and reproducing in its environment.
adaptation
Body parts that perform a similar function but differ in structure are ________
analogous
__________ is the change over time in populations related to organisms.
Biological Evolution
_________ is an adaptation that enables a species to blend in with its environment.
Camouflage
The science of development of embryos to fertilization to birth is called...
embryology