Download Unit 2

AP Biology Unit 2 – Origins of Life and Evolution of Diversity
Name____________________________________ Block ____ Date______________________
2015-16
Timeline: Sept. 8 – Sept. 23
Textbook readings: Chapters 22.1-3, 25.1-4, 55.1-4
Labs: Modeling life’s origin, begin phenology expt., cont. artificial selection expt., transect or other lab
Unit 2 Essential Questions
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What models exist for how life began on Earth and what evidence supports these models?
How do Charles Darwin’s ideas relate to some ideas of other thinkers from his era?
What is natural selection? How do different types of evidence support the theory of evolution?
What are some basic characteristics used to classify organisms into three domains? Into kingdoms?
How does matter cycle through ecosystems?
How do food webs help explain energy transfers in ecosystems? How do organismal characteristics affect energy
needs and energy flow?
What are the ways that living things obtain matter and energy to grow and reproduce?
Unit 2 Outline
I.
The “Big Ideas” of AP Biology
II.
Origins of Life
a. Inorganic precursor molecules
b. Conditions needed to form organic
molecules
c. RNA world
d. The first cells
e. From prokaryotes to eukaryotes
f. Oxygenation of the atmosphere
g. Multicellular life
III.
IV.
V.
Descent with Modification
a. Darwin & other thinkers
b. Natural and artificial selection
c. Evidence for evolution
Classification
a. Domains
b. Kingdoms
c. Key characteristics
Cycling of matter and energy
a. Requirements for life
Unit Schedule
Monday
Sept 5
Tuesday
Sept 6
Wednesday
Sept 7
Thursday
Sept 8
Friday
Sept 9
Watch “Origins:
How Life Began” &
BozemanEssential
Charact. of Life
Spherification prelab due in lab
notebook
Be working on
chapter 25.1-2.4
textbook
readings, unit
sheet hw q’s and
study guide
Unit 1
Unit 1
Sept 12
Sept 13
Sept 14
Sept 15
Sept 16
Spherification lab
discussion due,
hand in blue pages
Watch Bozeman:
Ecosystems
Be working on
chapter 22.1-22.3
textbook readings,
unit sheet hw q’s and
study guide
be working on all
textbook h.w.
Be working on
chapter 55.1 –
55.4 textbook
readings, unit
sheet hw q’s and
study guide
Labor Day
A block double:
transect lab pre-lab
G block: phrenology
weather permitting
Sept 19
Forest transect lab
due today; hand in
blue pages
Sept 20
A block double:
Osmosis lab pre-lab
due today (lab due
next unit)
Sept 21
Finish up
textbook/h.w./study
guide work
Review day
for G block
G block double:
transect lab pre-lab
A block: phrenology
weather permitting
Sept 22
Sept 23
Review day A block
G block double:
Osmosis lab pre-lab
due today (lab due
next unit)
Unit 2 Test
The “Big Ideas” of AP Biology: In each unit, consider how these themes relate to what you learn.
1 - The process of evolution drives the diversity and unity of life. (“Evolution”)
2 - Biological systems utilize free energy and molecular building blocks to grow and to maintain dynamic
homeostasis. (“Energy”)
3 - Living systems store, retrieve, transmit and respond to information essential to life. (“Information”)
4 - Biologic systems interact, and these systems and their interactions possess complex properties.
(“Interactions”)
Chapter 25 – The History of Life on Earth
Study Guide: Interactive Q’s 25.1-25.4, Structure Your Knowledge, and Multiple Choice 1, 4, 5-10, 13
1. What is different between inorganic and organic molecules? How did Miller and Urey explore possible
origin of organic molecules? (Also review Ch 4 notes) How do protobionts relate to organic molecules?
2. What evidence suggests that it is likely that RNA evolved before DNA?
3. Explain why the sequence of evolution was most likely the following:
a. single-celled chemoautotrophic and chemoheterotrophic prokaryotes
b. photosynthetic prokaryotes
c. eukaryotes
d. aquatic multicellular organisms
e. terrestrial multicellular organisms
4. How does compartmentalization organize a cell’s functions? What advantages does this provide to
eukaryotes? (Review Ch 6 notes)
5. What characteristics shared by living things support the idea that all modern organisms are descended
from some ancient life form?
6. Are fossils useful only to determine evolutionary history of multicellular organisms? Explain.
7. Memorize the dates of key events shown in Figure 25.7 and any additional dates given in class.
Chapter 22 – Descent with Modification: A Darwinian View of Life
1. Describe the contributions of each of the following people:
Carolus Linnaeus and taxonomy
Georges Cuvier and catastrophism
James Hutton and gradualism
Charles Lyell and uniformitarianism
Jean Baptiste Lamarck and inheritance of acquired characteristics
2. How did Darwin’s voyage on the HMS Beagle shape his understanding of the natural world?
3. “Evolutionary biologist Ernst Mayr has dissected the logic of Darwin’s theory of natural selection into
three inferences based on 5 observations.” Describe these observations+inferences in your own words.
4. Describe different types of evidence that support the theory of evolution by means of natural selection.
Based on class notes on taxonomy, you should be able to answer the following:
1. Who is Carolus Linnaeus? What contribution did he make in the history of taxonomy?
2. What is the hierarchy of taxa established by Linnaeus?
3. What are the basic characteristics that are used to classify organisms into different kingdoms?
4. What has changed in the reclassification of organisms from kingdoms into domains?
5. What are the basic characteristics that are used to classify organisms into different domains?
Chapter 55 - Ecosystems
1. How is community trophic structure linked to abiotic factors in ecosystems?
2. How does primary productivity affect an ecosystem? What are the major limiting factors for primary
productivity in aquatic and terrestrial ecosystems?
3. Explain secondary productivity and trophic pyramids, and the energy loss accompanied by the energy
transfer from one trophic level to the next.
4. How do the nutrient cycles relate to the major groups of organic macromolecules?
5. What are the ways in which plants and animals obtain energy and nutrients they require?