Science

Front 1

Species

Back 1

group of organisms that share similar characteristics and can reproduce among themselves.

Front 2

Sedimentary rock

Back 2

A type of rock that is more likely to contain fossils and is formed when minerals are deposited from a solution.

Front 3

Natural selection

Back 3

Organisms with traits best suited to their environment are more likely to survive and reproduce; includes concepts of variations, overproduction, and competition.

Front 4

Variation

Back 4

inherited trait that makes an individual different from other members of the same species and results from a mutation in the organism’s genes.

Front 5

Adaptation

Back 5

Any variation that makes an organism better suited to its environment.

Front 6

Gradualism

Back 6

A model describing evolution.

Front 7

Punctuated equilibriom

Back 7

Model describing the rapid evolution that occurs when mutation of a few genes results in a species suddenly changing into a new species.

Front 8

Radioactive element

Back 8

Element that gives off a steady amount of radiation as it slowly changes to a nonradioactive element.

Front 9

Primates

Back 9

group of mammals including humans, monkeys, and apes that share characteristics.

Front 10

Evolution

Back 10

Change in inherited characteristics over time.

Front 11

Hominid

Back 11

humanlike primate that appeared about 4 million to 6 million years ago, ate both plants and meat, and walked upright on 2 legs.

Front 12

Homo sapiens

Back 12

early humans that likely evolved from Cro- Magnons.

Front 13

embryology

Back 13

Study of embryos and their development.

Front 14

Homologous

Back 14

Body parts that are similar in structure and origin and can be similar in function.

Front 15

Vestigial structure

Back 15

structure that doesn’t have a function and once have functioned in the body of an ancestor.