Ch. 6 Vocab Flashcards
Any variation that makes an organism better suited to its environment
Adaptation
Study of embryos and their development
Embryology
Change in inherited characteristics over time
Evolution
Model describing Evolution as a slow process by which one species changes into a new species through a continuing series of mutations in variations overtime
Gradualism
Human like primate that appeared about 4,000,000-6,000,000 years ago, eat both plants and meat, and walked upright on two legs
Hominid
Early humans that likely evolves from Cro-Magnon‘s
Homo sapiens
Body parts that are similar in structure in origin and can be similar in function.
Homologous
A process by which organisms with trait best suited for their environment are more likely to survive and reproduce; include concept of variation, overpopulation, and competition.
Natural selection
 Group of mammals including humans, monkeys, and apes that share characteristics such as opposable thumbs, binocular vision, and flexible shoulders
Primate
Model describing the rapid evolution occurs when you Tatian of a few Jean results in a species suddenly changing into a new species.
Punctured equilibrium
Element that gives off a steady amount of radiation as a slowly changes to a non-radioactive element
Radioactive element
What type of rock, such as lime stone, that is most likely to contain fossils and is formed when layers of sand silt and clay or mud are cemented income compacted together or when minerals are deposited from a solution
Sedimentary rock
A group of organisms that share similar characteristics and can reproduce among themselves and produce fertile offspring
Species
Inherited trait that makes an individual different from other members of the same species and result from mutation in genes
Variation
Structure, such as the human appendix that doesn’t seem to have a function and may want to function in the body of an ancestor
Vestigial structure
