Question

define and give examples of homologous structures.
@Abhisar @poopsiedoodle @Nnesha

Answer 1

http://evolution.about.com/od/evidence/a/Homologous-Structures.htm

Answer 2

i dont like links >_> i need to understand this

Answer 3

okay sO_O 1st of all Homologous structures are parts of the body that are similar in structure to other species' comparative parts.

Answer 4

ok...

Answer 5

this isnt helping -_-

Answer 6

soorry give me a sec

Answer 7

;-; ;=; ii can't

Answer 8

its okay leave it

Answer 9

key term divergent evolution

Answer 10

https://www.youtube.com/watch?v=MacfZPA95Ig <---

Answer 11

Structural homology means having the same evolutionary origins (Common Ancetor)
Their anatomy is similar but they have different functions.
I think the evidence supporting the theory of evolution in relation to structural homologies include:
- Vertebrate pentadactyl limbs.
So an example would be how birds, dogs, humans, whales and bats have comparative anatomy because they all have pentadactyl limbs (limbs that consist of 5 main parts).
But the sizes and shapes of certain bones are different because they have different functions.
Like the phalanges in humans are different to dogs ... Hence why we have long fingers and we can pick up things while dogs STILL have phalanges but they're much shorter and smaller so they have paws instead?

Answer 12

yayay butterfly

Answer 13

xD i could be totally wrong..
All i know for certain is that it is to do with pentadactyl limbs :P

Answer 14

haha thanks

Answer 15

no problem :))

Answer 16

Homologous structures are the organs of different organisms which have similar structure like similar anatomy but are used for different functions. For example, Arms of human and wings of bats. They both have similar anatomy but obviously arms are used for purposes like holding, punching etc. while wings are used for flying.

These (homologous) structures indicate divergent evolution or similar ancestry.

More examples of Homologous structures :--> \(\tt ~\href{httP:///examples.yourdictionary.com/homologous-structure-examples.html}{\underline{click~here}}\)

Answer 17

Ah! thats more clear thanks :)