SATII Biology MAY

helpneededrtenow
Wed, 09 May 2007 23:14:48 +0000

Kevinscool,

Which of the following is NOT a characteristic of a bird?
A. 4 chambered heart
B. Respiratory system
C. Amniotic egg
D. Internal reproduction
E. teeth

For this question, the ambiguity is in “bird.” In modern day birds, they don’t have teeth, and that would be the right answer. However, Archaeopteryx, a bird that has existed 150 million years ago had teeth.

and the stupid lab questions … the TAT mRNA and the hormone labs especially…

and the grassland/forest one…