natural selection
competition in a species
struggle for survival within a population
when a species goes through evolution does the species become more complex or less complex
more complex
wit genetic variation will the species be able to live longer or not
it will live longer
if branch is far what does that mean
the branch is less related to that species
approxmitatley how old would a fossil be if it was on the bottom
billions or millions years old
what is overproduction
more offspring than environment can support
how can and evolution of a species affect that species
it can positively affect them by giving them and advantage to their enviorment
how does hgenetic variation occur
through an genetic mutation in the dna
what is the defentition and purpose of a cladogram
shows he evolutionary relationship with species
are the fossil closer to the top more complex or less complex
more complex
whats the benefit of natural selection
allows more variation in a species
hiw can evolution occur
random mutation ina dna
what is the definition of genetic variation
genetic difference among individuals in a population
what is an common ancestor
species from which 2 species evolved from
which fossil in fossil layers is the youngest
the ones closer to the top
what is natutral selection
organismis best suited for their environment will be able to survive and reproduce
what is the definition of evolution
process which species change over time
what are the bad sides or genetic variation
the organisms not best for their environment will die and not be able to reproduce
where is the common ancestor located in a cladogram
at the bottom where the cladogram curves
when a fossil is low does that mean that fossil is more complex or less complex
less complex
what is needed for natural selection to occur?
Variation
how is evolution beneficial to an species or organism
is allows them to become more adaptive to their environment and also become more complex
what are the positive traits variation provides for a species
allows the ones best for to live in environment and to reproduce to keep species alive
in a cladogram if a branch is closer to an branch what does that mean
the branch is closet related to each other
if the fossil is lower than others what does that mean
that fossil is older than all the ones up top