http://prntscr.com/ast5ek
Would you explain why the answers that were wrong were incorrect? I'm not quite understanding why.

Question

http://prntscr.com/ast5ek
Would you explain why the answers that were wrong were incorrect? I'm not quite understanding why.

kikuo · Answer

@Isaiah.Feynman

isaiah.feynman · Answer

Ummm i'm not sure how to explain it. lol. Lemme say a DERIVED character is a modification of an already existing character.

kikuo · Answer

To be clear, I know why the last one isn't correct. Not the rest. 

So, the first one is incorrect because it doesn't say that the derived characteristic only belong to mammals?

isaiah.feynman · Answer

Sorry, but i'm not sure.

kikuo · Answer

It's alright!

abhisar · Answer

A shared character is one that two lineages have in common, and a derived character is one that evolved in the lineage leading up to a clade and that sets members of that clade apart from other individuals.

abhisar · Answer

See this link, It will help http://evolution.berkeley.edu/evolibrary/article/evo_08