Fossils, Evolution, Natural Selection Test
Terms in this set (44)
A trace from a long dead organism
study of the geographical distribution of fossils and living organisms
How fossils form
Under the right conditions, minerals dissolved in groundwater seep into the tissues of a dead organism and replace its organic material. The remains become petrified—they turn to stone.
hard parts, shells, bones, teeth
What kinds of parts become fossils?
molds that are eventually filled with minerals
Law of Superposition
successive layers of rock and soil are layered on top of one another
the lowest stratum(layer) has the....
Which is the most reliable method for determining fossil age
Relationships between fossilized organisms are based on evidence gathered from all except
Which is the following is not an example of vestigial structure
Process of change in characteristics over time
Fossils, geographic location, DNA comparisons
Evidence for evolution involves the study of
structure similarities found in more than one species that share a common ancestor. Similar parts but different functions
Individuals with more favorable characteristics leave more offspring than other individuals. the best organisms survive and reproduce.
"survival of the fittest"
Traces of a structure that may have had an important function in a species ancestors, but has no clear function in the modern species. structure no longer needed.
Beneficial trait that helps organisms survive
an individual's likelihood of survival and reproduction
Variations among organisms in a population is due to...
heritable and favorable
Natural selection can act if a trait is...
descendant with modification
Idea that all organisms that exist today have evolved from a common ancestor
similar to analogous structure
Structures that serve the same function but do not share a common ancestor
Different species evolve similar traits, but different ancestor
artificial selection is the same as
Which of the following would not be included within the biochemical
Organisms with high _______ reproduce more successfully than other populations
Embryology comparisons reveal that organisms look _____ in early development phases
Corresponding changes of two or more species that are closely associated. When 2 or more species change together
Bat wing and butterfly wing are an example of
populations that live in different geological areas
famous for the theory of evolution and Natural Selection, or 'Survival of the Fittest'
Known for his Theory of Inheritance of Acquired Characteristics. Proposed that life evolves of changes.
Theory of Inheritance of Acquired Characteristics
evolution was the "acquired traits" of a species that is inherited by its offspring
the branch of biology and medicine concerned with the study of embryos and their development
a branch of biology that deals with proteins and nucleic acids essential to life
a protein found in mitochondria. made of 104 amino acids joined together
a diagram that depicts evolutionary relationships among groups. It is based on PHYLOGENY
the study of evolutionary relationships
a valuable tool that can be used to identify many objects ranging from plants to minerals.
When 2 or more related population/species become more and more different.
this type of evolutions most often happens when a group of organisms is isolated from the main populations
evolution of an animal or plant group into a wide variety of types
humans select traits, not nature
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