fossils
what kind of rock are fossils found in
sedimentary.
what do all invertebrates have in common.
they don't have a spine
where two species come together into one
convergent evolution
are cladograms objective or subjective evidence
subjective
what is a homologous structure
a structure with different function same form
are older fossils found higher or lower in the fossil record
lower
why do different species have different traits
to adapt to environment factors.
when one species come apart into two
divergent evolution
what do cladograms show
qualitative evidence
what is an analogous structure
a structure with different form but same function
what evidence do fossils provide
details about extinct species. they support evolution theory.
what type of evidence shows definitive proof of a common ancestor
molecular evidence
where two species evolve in response to one another
co-evolution
what do phylograms show
objective evidence of when the species evolved; the passage of time.
what is a vestigial structure
a structure that no longer has a significant purpose (not necessary for survival)
why cant fossils be found in igneous rock
too much heat and pressure
what does DNA stand for
deoxyribonucleic acid
the type of evolution that happens over a long period of time and is more subtle
macro evolution
what is an outgroup
a species that doesn't share a trait with any of the other sample species
what type of evidence does the cytochrome c count provide
how long ago the species diverged
what hole in the skull shows evolution to bipedalism
the foramen magnum
what is the biological definition of a species
a group of organisms that can produce fertile young
the type of evolution that happens relatively fast and is more noticable.
microevolution
what is the point on a phylogram and/or cladogram where two species diverge
branch points
what evidence does DNA provide
evidence of relative similarity between species.