Fundamental Aspects of Evolution
, uroegercabortio
8. to
the change that occurs at labove the level of species over long periods of time
·microevolution smaller
evolutionary changes (changes in allele frequencies) within a species (pop.
-
·includes remarkable trends + transformations -
ie: origin of mammals + radiation of flowering plants
history of life reconstructed
using multiple lines of evidence to
molecular sequencing data, geology, fossils, living orgs
·
8
phylogeny scientific study of evolutionary relationships bow species
-
Ot
phylogenetics study of
evolutionary relationships among groups of
orgs which have been discovered through
-
above lines of evidence
↳represented in
phylogenetic tree-trunks + stems- lineages of ancestors
-branching: divergences bow lineages
8 tree oflife -
metaphor describing relationship of all life in
evolutionary context
preter18
stasis equilibrium
of time
·no
change for a
long period
·solittle for long living fossils
change so =
↳eg: coelacanth 50 million years of stasis same body form
-
=
evicage splitting speciation
·identified
by constructing examining
+
a
phylogeny-either cladogenesis or
anagenesis
cladogenesis
St
evolutionary splitting event where a parent species splits into 2 distinct species, forming a clade
·clade life-form
group consisting of common ancestor
to
a
all
↓
its descendants
·starts from a split
·
Macroevolution
·
both species live at same time as other species
, uroegercabortio
8. to
the change that occurs at labove the level of species over long periods of time
·microevolution smaller
evolutionary changes (changes in allele frequencies) within a species (pop.
-
·includes remarkable trends + transformations -
ie: origin of mammals + radiation of flowering plants
history of life reconstructed
using multiple lines of evidence to
molecular sequencing data, geology, fossils, living orgs
·
8
phylogeny scientific study of evolutionary relationships bow species
-
Ot
phylogenetics study of
evolutionary relationships among groups of
orgs which have been discovered through
-
above lines of evidence
↳represented in
phylogenetic tree-trunks + stems- lineages of ancestors
-branching: divergences bow lineages
8 tree oflife -
metaphor describing relationship of all life in
evolutionary context
preter18
stasis equilibrium
of time
·no
change for a
long period
·solittle for long living fossils
change so =
↳eg: coelacanth 50 million years of stasis same body form
-
=
evicage splitting speciation
·identified
by constructing examining
+
a
phylogeny-either cladogenesis or
anagenesis
cladogenesis
St
evolutionary splitting event where a parent species splits into 2 distinct species, forming a clade
·clade life-form
group consisting of common ancestor
to
a
all
↓
its descendants
·starts from a split
·
Macroevolution
·
both species live at same time as other species
