Biology Homework help please!!

Posted on 2015-11-12 12:14:00 in Biology by EMMA

1. We define living taxonomic groups based on suites of shared derived features. But all creatures, living or extinct, have to fit into our phylogenetic classification systems. And we use the same principles (recency of common ancestry as revealed by the sharing of derived traits) to classify both living and extinct species.

A. What is/are some derived feature(s) of contemporary humans that set us apart from the other living great apes? Name as many as you can.

B. What is/are some derived feature(s) that all hominins have that set(s) us apart from non-hominin apes? Name as many as you can.

C. Are there any hominins that are members of the chimp lineage? Explain.

D. What genera (the plural of genus) would you classify as hominins, and why?

E. Why is it harder to classify extinct, fossil forms than living forms?

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