Homework Assignment 1 You should turn this in to a dropbox for Homework 1 in
Desire 2 Learn. Contact me by email if you have any issues.
Assigned 12 June: due 17 June
Figure 6.32 describes a technique to measure genetic variation within populations and
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What is Life?
9/13/16 8:08 PM
Life does not happen spontaneously
All life is made of cells and all cells come from preexisting cells.
Types of Cells
o No orgenelles or nucleus
o Many membrane bound orgennelles and nu
First animals with bilateral symmetry and
Triploblastic- all three germ layers
Protostomes with spiral embryonic cleavage
(determinate= early fixi
Parazoans and Radiates
Placozoans, Poriferans, Cnidarians and Ctenophores
Modern animals are divided into
three major groups
Mesozoans: multicellular, without germ layers
Parazoans: multicellular, without germ layers
Eumetazoa (all other animal ph
Evolution & Speciation
Nothing in biology makes sense except in
the light of evolution.
Theodosius Dobzhansky (1973)
What is evolution?
Evolution Occurs at Different Scales
Microevolution- changes in gene frequency in a population from one
!True segmented worms
or more pairs of
!About 2/3 are marine, mostly
1.How does a bivalve burrow? Why does it burrow?
Test 2 Study Guide
Chapter 10 Taxonomy and Systematics
Clade: Species that share a derived trait
Synapomorphy: A derived character shared by members of a clade
Homoplasy: Traits arising independently
Convergent Evolution: Similar selection pressures caus
Paper Report Form
1. Paper title: Phylogenomic analyses unravel annelid evolution
2. In two to four sentences, what is the main idea of the article/paper? What are the primary findings?
Annilids are a diverse phylum that can live almost anywhere on the pl