Evolution 1
Body structure.
What is anatomy?
He is known as the Father of Evolution
Who is Charles Darwin?
The "survival of the fittest" or the idea that species with the best traits will survive and reproduce and the species with less favorable traits will die or not reproduce.
What is natural selection?
The process through which new species are created over time.
What is speciation?
A fossil that is dated between an older fossil and a newer one and shows evidence of gradual change over time.
What is a transition fossil?
Structures that are similar enough to indicate common ancestry, such as the limb bones that humans, cats, horses, bats, and whales have in common.
What are Homologous Structures?
An anatomical structure which has no apparent purpose, but may provide evidence of past evolutionary forms.
What is a Vestigial Structure?
The idea that God created each species exactly as they are seen in their present forms.
What is Special Creation?
A very early stage of development of an individual.
What is an Embryo?
The study of the distribution of species.
What is Biogeography?
An idea supported by a large amount of evidence.
What is a Theory?
Anatomical structures which serve similar purposes, such as helping an organism fly, but do not provide evidence of common ancestry.
What are Analogous Structures?
Because at the time of Darwin's studies, "special creation" was the accepted belief system.
Why were Darwin's ideas rejected?
These tell us that extinct species once existed.
What are fossils?
What we know from the similar anatomical structures of embryos.
What is common ancestry?
The embryos of fish and humans have these two anatomical features in common.
What are pharyngeal arches (gills) and tails?
What is the function of Antibiotics?
What is to kill or slow the growth of bacteria?
Structures that have no apparent function and appear to be residual parts from a past ancestor
What are Vestigial Structures?
The remnant of a pelvic bone in a whale. (Pelvic bones support the bodies of organisms that walk on land, but whales swim in the ocean.)
What is a vestigial structure?
Similarities in anatomy tell scientists there may be this.
What are shared ancestors?
The 2-word term that refers to the process by which individuals that are better suited to the environment survive and reproduce therefore passing down their genes to their offspring.
What is Natural Selection?
When 75% or more of species on Earth go extinct in a short amount of time.
What is Mass Extinction?
Body structures on different organisms that are similar in function but did not evolve from the same ancestor (bird wing and butterfly wing)
What are Analogous Structures?
During which era of the fossil record did mammals first appear?
What is Cenozoic?