Worksheet 2 Ch. 1 - Iowa State University

CH.1
Nature of Science
Supplemental Instruction
Iowa State University
Leader:
Course:
Instructor:
Date:
Maura
Bio 211
Dr. Biederman
1/19/17
Phylogenetic Tree Review:
Draw a simple phylogenetic tree with three common ancestors (3 nodes) and two sister taxa(a
clade). Label the root, branches, clade, taxa and nodes
If you have a node with two branches, does it matter which branch you write on top and which
you write on bottom? Why is this important to know?
CH. 1
1.What are the five characteristics of life?
2.Describe the Cell Theory. Did this support or challenge the idea of spontaneous generation(aka
a rag turning into/producing rats)
3.True or False (correct if false):
4.The geocentric model of the universe was presented by Copernicus and stated that he believed
earth was at the center of the universe and everything else surrounded it. While the heliocentric
model of the solar system was predictive and showed a mathematical model proving the
geocentric model.
5.True or False:
Theories can become facts
6.Place the steps of the scientific method in order:
1.
2.
3.
4.
Test hypothesis through objective experiment or observations
Either accept the null hypothesis or the hypothesis
Create a hypothesis
Design an experiment or observational sampling scheme
7.What is the purpose of having a “control” in an experiment?
8.Come up with an example of a controlled experiment using the batesian mimicry theory.
9.Which of the following does not belong? This list of characteristics describes what?
A. Objective
B.
C.
D.
E.
F.
G.
Falsifiable
Imaginable
Reproducible
Testable
Realistic
Measurable
10.Do you think a tumor is alive? Why or why not.(Thinks about the five characteristics
necessary for life and relate to that)
CH. 29 Intro
1.List the three domains we will be covering and which are prokaryotes or eukaryotes
2.If prokaryotes do not have a nucleus where do they store their DNA? How do they replicate?
3.True or False: (Explain why)
Prokaryotes are complex