|
|
|||||||||||||||
![]() ![]() |
|||||||||||||||
Biology4Kids Quiz: Bird PhysiologyQUESTION 1: INCORRECT All birds lay eggs. They lay hard-shelled eggs. Even though reptiles also lay eggs, reptiles lay eggs with softer shells. There are even mammals that lay eggs. They are classified as monotremes. Mammals are the only species with placentas. > Continue to Next Question > Restart Quiz |
Custom Search
* The custom search only looks at Rader's sites.
|
||||||||||||||
©copyright 1997-2009 Andrew Rader Studios, All rights reserved. |
|||||||||||||||
|
|
|||||||||||||||