Class Notes (1,100,000)
CA (620,000)
UOttawa (30,000)
BIO (3,000)
BIO 1130 (700)
Lecture 21

BIO 1130 Lecture 21: Nov 30 - More Silurian - Bony and Cartilageneous Fishes


Department
Biology
Course Code
BIO 1130
Professor
Jon Houseman
Lecture
21

This preview shows half of the first page. to view the full 3 pages of the document.
2UGRYLFLDQH[WLQFWLRQVXUYLYRUVDUHUHSUHVHQWDWLYHRIDOOWKHSK\ODZHKDYHWRGD\IRUWKHPRVW
SDUW
6LOXULDQ
)LVK
 ERQ\VNHOHWRQVHDEHGFDUWLODJH
 7HHWKHPEHGGHGLQMDZLQVWHDGRIVNLQ
%RQ\ILVK
 ILQVFDQEHPDQLSXODWHG7KH\DUHQRWHPEHGGHGLQWKHERG\ZDOO
 )LVKGRHVQWKDYHWRVZLPFRQVWDQWO\
 ,WFDQPDQHXYHUZLWKYHU\VSHFLILFDJLOLW\
 ,WFDQEUHHGHYHQWKRXJKLWVQRWPRYLQJ
 6PDOOILVKDOOILQQRWDLO
 %LJILVKDOOWDLOQRILQ
 %RQ\ILQUD\V
 6XFWLRQIHHGLQJFDQVHQVHZDYHVLQWKHZDWHUFUHDWHGE\RWKHUILVKGHWHFWVORZOHYHO
YLEUDWLRQVĺMDZLVKLQJHGYHU\XQXVXDOO\ĺFDQRSHQWKHLUMDZYHU\ZLGHYHU\TXLFNO\
 6ZLPEODGGHU௙KHOSVZLWKEXR\DQF\ĺEDJRIDLUZLWKVHWVRIFDSLOODU\EHGVDVVRFLDWHG
ZLWKLWĺZKHQILVKPRYHVJDVHVDUHUHOHDVHGLQWRWKHEDJĺSLFNVXSHIIHFWVRI
SUHVVXUHDURXQGWKHILVKĺDVILVKGLYHVLWFRQVWDQWO\UHDGMXVWVWKHVZLPEODGGHUVRLWKDV
MXVWHQRXJKJDVWRQRWVLQNRUULVHDWZKDWHYHUGHSWKLWLVDW
 2SHUFXODUJLOO௙RSHUFXODUSODWHPRYHVRXWDQGLQĺVQDSVJLOODJDLQVWERG\RSHQV
PRXWKH[SDQGVPRXWKFDYLW\VLQFHJLOOLVSUHVVHGDJDLQVWERG\LWZRQWFRPHLQWKURXJK
WKHJLOOVMXVWWKHPRXWKĺRSHQVRSHUFXOXPDQGFUHDWHVDVXFWLRQĺFDQVLWDQG
FRQWLQXRXVO\SXPSZDWHUDJDLQVWLWVJLOOVZLWKRXWKDYLQJWRPRYH
(YROXWLRQRIWKH7HWUDSRGVWDQFH
 OREHILVKHVFDQOLIWWKHLUKHDGVRXWRIWKHZDWHUFDXVHWKH\DOVRKDYHOXQJVĺWKH\FDQ
EUHDWKLQEDGZDWHUFRQGLWLRQVĺWKH\KDYHOXQJVWRRĺH[WUDVNHOHWDOVXSSRUWLQOLPEV
DQGPXVFOHVFDXVHWKH\QHHGWRJHWWKHPVHOYHVXSWRWKHVXUIDFHWREUHDWKVRPHWLPHV
 7KHVHDUHWKHILVKWKDWHYROYHGLQWRDPSKLELDQV
3ODQWDHYHUGLSODQWDH
ERWDQLVWVZHUHVRPHRIWKHODVWWRHPEUDFHFODGLVWLFV
 %RWDQLVWVKDYHDYHU\VLPSOHVWRU\OLQHĺXVHGDGHJUDGDWLRQRIFRPSOH[LW\WRGHVFULEH
WKHLUJURXSVĺOHVVFRPSOLFDWHGWRPRUHFRPSOLFDWHG
&HOOXORVHDQGFHOOXORVHV\QWKDVH
 FHOOXORVHJHQHLVEDFWHULDOLQRULJLQLWLVDOVRIRXQGLQEDFWHULD
 &HOOXORVHLVQWMXVWDµSODQWWKLQJ¶
You're Reading a Preview

Unlock to view full version