× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
Home Q & A Board Other Fields Homework Help Other
New Topic  
ogre212 ogre212
wrote...
Posts: 6
Rep: 0 0
11 years ago
vestigial organs and homologous structures
Read 971 times
2 Replies

Related Topics

Replies
wrote...
#1
11 years ago
vestigal structures are structures that areless important because they have reduced in size and are not important.WHILE.homologous structures are structures that share a common ancestry
wrote...
#2
11 years ago
Vestigial structures are greatly reduced in size, although they may retain some function (for example, the human vermiform appendix no longer is a pouch for fermenting cellulose, but it remains as an immune system structure).

Homologous structures derive from the same embryonal tissues.  The human arm, the whale pectoral fin, and the bat wing are homologous structures.  Homologous structures may be vestigial, such as the residual forelimb bones of the legless lizards or the kiwi.
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1264 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 1100
  
 6674
  
 234
Your Opinion
Who will win the 2024 president election?
Votes: 3
Closes: November 4
Previous poll results: What's your favorite funny biology word?