CCHS AP Biology Summer Assignment



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

▪ 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. Descent with Modification

a. Darwin & other thinkers

b. Natural and artificial selection

c. Evidence for evolution

IV. Classification

a. Domains

b. Kingdoms

c. Key characteristics

V. Cycling of matter and energy

a. Requirements for life

Unit Schedule

|Monday |Tuesday |Wednesday |Thursday |Friday |

|Sept 5 |Sept 6 |Sept 7 |Sept 8 |Sept 9 |

| | | |Watch “Origins: How Life | |

| | | |Began” & BozemanEssential |Be working on chapter |

| |Unit 1 |Unit 1 |Charact. of Life |25.1-2.4 textbook |

|Labor Day | | |Spherification pre-lab due |readings, unit sheet hw |

| | | |in lab notebook |q’s and study guide |

|Sept 12 |Sept 13 |Sept 14 |Sept 15 |Sept 16 |

| | | | | |

|Spherification lab discussion|Watch Bozeman: Ecosystems |Be working on chapter |be working on all textbook |Be working on chapter |

|due, hand in blue pages | |22.1-22.3 |h.w. |55.1 – 55.4 textbook |

| |A block double: transect lab |textbook readings, unit | |readings, unit sheet hw |

| |pre-lab |sheet hw q’s and study guide|G block double: transect |q’s and study guide |

| |G block: phrenology weather | |lab pre-lab | |

| |permitting | |A block: phrenology | |

| | | |weather permitting | |

|Sept 19 |Sept 20 |Sept 21 |Sept 22 |Sept 23 |

| | |Finish up |Review day A block | |

|Forest transect lab due |A block double: |textbook/h.w./study guide | |Unit 2 Test |

|today; hand in blue pages |Osmosis lab pre-lab due today|work |G block double: | |

| |(lab due next unit) | |Osmosis lab pre-lab due | |

| | |Review day |today (lab due next unit) | |

| | |for G block | | |

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?

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