What gas did not appear in any measurable amount until about 2.0 BY BP?

The images show the wings of a bat and a bee. from this evidence, what can you conclude about the evolutionary relationship between these organisms? a. the wing structures of the bat and the bee are different, indicating they didn’t inherit wings from a common ancestor. b. the wing structures of the bat and the bee are different, indicating they inherited wings from a common ancestor. c. the functions of bat wings and bee wings are the same, indicating they obtained wings from a common ancestor. d. the functions of bat wings and bee wings are different, indicating they didn’t obtain wings from a common ancestor.

Aflame cell is at the end of each tubule of the nephridium malpighian tubules kidneys none of the above

Genetic disorders can result when sister chromatids fail to seperate properly. during what phase is this problem most likely to occur?