analogy=convergent evol.?

[Zebra]

true?

[tea.squaredd]

true!

[Zebra]

true!

how come??
can you define analogy...taeyeon...

[tea.squaredd]

Oh dang, I just assumed analogous structure.
Sorry, maybe not!

[Zebra]

you are right i think. but please explain!

[nooshnoosh95]

yea i think its right

because isnt convergent evolution when the two species become more similar
and isnt analogous when species have similar functions which means that they are
so yes convergent evolution does relate to analogous
because they both are a result of similar selection pressures in the environment causing species to become more similar

i get confused reading that but i hope it helps

[Readinya]

Here's an excerpt from my teacher's powerpoint notes:

DIVERGENT EVOLUTION
• Process where a population of organisms with a recent common ancestor develops different adaptations as a result of changed habitats.
• As populations move into different environments with different selection pressures, they evolve adaptations to exploit these = adaptive radiation.
• This type of evolution can lead to HOMOLOGOUS structures (similarity in sturctures due to common ancestor)
• For example in Australia the lack of large predators led to the development of carnivorous marsupials such as the Tasmanian Devil. These organisms do not have sharp canine teeth like lions or dos but have similar teeth to the herbivorous marsupials that have been modified over a long period of time. Organisms produced by this kind of evolution often have homologous features - features that are similar in structure and have an evolutionary relationship.

CONVERGENT EVOLUTION
• Process where unrelated organisms evolve similar adaptations due to similar selection pressures in their environments.
• This type of evolution leads to ANALOUGOUS structures -  structures that have a similar FUNCTION but have no evolutionary relationship from a recent common ancestor. Eg, the wings of bats and of birds serve the same function: flight, but are obviously from different species of animals.


Hope this helps!

[Zebra]

Here's an excerpt from my teacher's powerpoint notes:

DIVERGENT EVOLUTION
• Process where a population of organisms with a recent common ancestor develops different adaptations as a result of changed habitats.
• As populations move into different environments with different selection pressures, they evolve adaptations to exploit these = adaptive radiation.
• This type of evolution can lead to HOMOLOGOUS structures (similarity in sturctures due to common ancestor)
• For example in Australia the lack of large predators led to the development of carnivorous marsupials such as the Tasmanian Devil. These organisms do not have sharp canine teeth like lions or dos but have similar teeth to the herbivorous marsupials that have been modified over a long period of time. Organisms produced by this kind of evolution often have homologous features - features that are similar in structure and have an evolutionary relationship.

CONVERGENT EVOLUTION
• Process where unrelated organisms evolve similar adaptations due to similar selection pressures in their environments.
• This type of evolution leads to ANALOUGOUS structures -  structures that have a similar FUNCTION but have no evolutionary relationship from a recent common ancestor. Eg, the wings of bats and of birds serve the same function: flight, but are obviously from different species of animals.


Hope this helps!

gotcha!

[Truck]

here's the way I think about it...

Analogies = Same function diff structure = Convergent.

Homos = Same structure diff function = Divergent.

duno if that's what you were really asking (or if that's even a smart way to think about it) but it helps me on the prac. exams lol.