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Biology 20: Module 4: Lesson 2
1
Assignment
MODULE 4: LESSON 2 ASSIGNMENT
This Module 4: Lesson 4 Assignment is worth 48 marks. The value of each assignment
and each question is stated in the left margin.
(10 marks)
Lesson 2 Assignment: Developing Theories to Explain Change
(8 marks)
TR 2. Answering Darwin’s Questions
(2 marks)
1. What were the two main ideas expressed in Darwin’s publication On the Origin of
Species?
Answer:
2. Turn to page 125 of the textbook and read the questions. These questions helped
Darwin develop his ideas on evolution and natural selection. Suggest possible answers
to Darwin’s questions, and link them to the two main ideas that he expressed in On the
Origin of Species. Complete three of the five questions from “Table 4.1.” Each of the
three questions is valued at 2 marks.
(10 marks)
(3 marks)
TR 3. The Pace of Evolution
1. Which theory do you believe provides the best explanation for the pace of evolution?
Give reasons for your answer.
Answer:
(7 marks)
2. Create a table or chart that compares and contrasts the ideas of gradualism and
punctuated equilibrium.
Answer:
(30 marks)
Reflect and Connect: Applying and Comparing Theories of Evolution
(2 marks)
1. A woman spends much of her time by swimming pools and, as a result, has very
tanned skin. What would the hypothesis of inheritance of acquired characteristics say
about the skin of her children? Why?
Answer:
Biology 20: Module 4: Lesson 2
(4 marks)
2
Assignment
2. Using two examples, describe how Charles Darwin used observations of the world
around him to develop his hypothesis about how species might change with the
passage of time.
Answer:
(8 marks)
3. Imagine that you are Charles Darwin. You are living in the 1800s and writing down
ideas in your journal. Describe how different scientist’s ideas affect your thinking. The
journal entry should be in the first person (as though you are Darwin). Include the ideas
of three different scientists, and relate how they influenced your (Darwin’s) thinking.
Answer:
(4 marks)
4. Use a Venn diagram to compare Darwin and Lamarck’s different theories of evolution.
Venn Diagram Marking Rubric
Alike Features
Unique Features
2
identifies ways the
two are alike
identifies ways
that the two
theories differ
1
identifies correct
and incorrect ways
the two are alike
identifies correct
and incorrect ways
that the two differ
0
identifies incorrect
ways the two are
alike
identifies incorrect
ways that the two
differ
Answer:
(8 marks)
5.
Read the first four paragraphs in “Thought Lab 4.3” on page 127 of the textbook. Flying
fish use large pectoral fins to glide in air. Explain how Lamarck and Darwin might
account for the origin of the large pectoral fins and the ability of the fish to glide. You
may choose to work with a partner or by yourself to complete this question.
© OZGER AYBIKE SARIKAYA/SHUTTERSTOCK
Use one of the following formats to answer question 5:
Biology 20: Module 4: Lesson 2
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3
Assignment
a comic strip
a dramatic presentation
a movie manuscript
a children’s story
any other acceptable format approved by your teacher
Think about the following questions as you create your product:



How would the variation of large pectoral fins occur differently according to the
two different scientific theories?
How are variations passed on to the next generation?
Are the differences between the two theories obvious in your product?
Read this rubric to see the assignment specifications.
Comparing Theories Rubric
Theory
Differenc
es
Product
Quality
4
Differenc
es
between
the two
theories
are very
clear and
correct.
The
product is
clear,
organized
, and
creative.
3
Differenc
es
between
the two
theories
are clear
and
correct.
The
product is
clear and
organized
.
2
Differences
between the
two theories
are
somewhat
clear.
1
Differenc
es
between
the two
theories
are
unclear.
The product
is
understanda
ble.
The
product is
not clear
or not
organized
.
0
None of
the
questions
are
answered
in the
presentati
on.
The
product is
not clear
and is
disorganiz
ed.
___ x 2
/8
__ x 1
/4
TOTAL
/12
Answer:
(4 marks)
6. Lamarck suggested that organisms arise spontaneously and then become increasingly
more complex. Why is this idea not supported by the theory of natural selection?
Present your discussion as a podcast, as a written article, or as a graphic.
Answer:
Once you have completed all of the questions, submit your work to your teacher.
Biology 20: Module 4: Lesson 2
4
Assignment