Study guide for BIEB 128 Midterm 1 – Fall 2010 Insect diversity (note that this topic spans 3 lectures) – Why are insects so diverse? – Know at least one diagnostic characteristic of each order (for the 21 common insect orders) as well as their Latin and English names + developmental syndrome of each order Systematic relationships – Know synapomorphies of the Arthropoda, Hexapoda, Insecta – What are the Entognatha? – What are the major taxonomic groupings within the insect phylogeny? – Why are the Entopterygota believed to be so diverse and abundant? Internal and external morphology – Morphology and key properties of the insect cuticle – Do exoskeletons set an upper limit on insect body size? – Know the insect hexapod tagma. – What does hemolymph do? – How do insects meet oxygen demands necessary to sustain metabolically expensive activities (e.g., flight)? – How do insects breathe underwater?
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