evolution i group 3: eval devos karina baum, peter busher, sam hammer, gaston pfluegl & erin...

Evolution IGroup 3: Eval Devos

Karina Baum, Peter Busher, Sam Hammer, Gaston Pfluegl & Erin Sanders-Lorenz

Title: Molecules as Evidence of Evolution

Boston University UCLA

Organismal form indicates evolutionary relationships.

A. AlwaysB. OftenC. SometimesD. Never

Learning Goal:

To infer evolutionary relationships by comparing molecular structures and functions among organisms.

Identify evolutionary relationshipsDescribe limitationsDiscover new ways

Construct evolutionary model

Learning Objectives:

Fun with organisms

1. take a moment by yourself to consider how these organisms are evolutionarily related.

2. work in groups of two or three and arrange the images you were given. Organize them according to which ones you think are most closely evolutionarily related.

3. write down all the criteria you used to group these organisms.

Which animal are alligators most closely related to?A.

B.

C.

Lizard

Bird

Bat

Which animal are hippos most closely related to?A.

B.

C.

Whale

Alligator

Rhino

Which organism are moths most closely related to?A.

B.

C.

Bacteria

Plant

Fungus

Which organism are flowers most closely related to?A.

B.

C.

Volvox

Carnivorous plant

Fungus

Alligators are most closely related

A.

B.

C.

Hippos are most closely related to

A.

B.

C.

Moths are most closely related

A.

B.

C.

Flowers are most closely related to

A.

B.

C.

Which other criteria, that we did not consider before, may researchers have used to

arrive at the evolutionary relationships we just observed?

Alligators are most closely related to

A.

B.

C.

ProteinsProteins

Hippos are most closely related to

A.

B.

C.DNADNA

Moths are most closely related to

A.

B.

C.

Carbohydrate

Flowers are most closely related to

A.

B.

C.Morphology and molecular data

hippo

plant

fungus

whale

moth

bacterium

alga

Protein Carbohydrate DNA

Assignment

1 Minute Paper

1.Describe limitations of arranging evolutionary relationships by form.

2.What are the new ways you discovered to establish evolutionary relationships.