1. The Science of Biology Chapter 1
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Raven - Johnson - Biology: 6th Ed. - All Rights Reserved - McGraw Hill Companies

2. Five Basic Characteristics of living things 1. Life is ____________:
What is Life?
Five Basic Characteristics of living things
1. Life is ____________:
Atoms, molecules
Cells
Tissues, organs
Populations, community
Ecosystem, biosphere
Raven - Johnson - Biology: 6th Ed. - All Rights Reserved - McGraw Hill Companies

3. What is Life?
Five Basic Characteristics (continued)
2. _____________ is required
Photosynthesis, respiration
3. Living things ____________________
Homeostasis
4. Living things __________________
5. ____________________

4. _______________ Reasoning
The Nature of Science
_______________ Reasoning
General principles used to predict specific results.
Arriving at a conclusion based on observations.
Raven - Johnson - Biology: 6th Ed. - All Rights Reserved - McGraw Hill Companies

5. Darwin’s Theory of Evolution
In Darwin’s time, most people believed species ___________________ over time
Darwin argued species change due to _______________________________
Served as naturalist on mapping expedition around coast of South America.

6. H.M.S. Beagle Voyage Copyright © McGraw-Hill Companies Permission
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7. Inventing the Theory of Natural Selection
Darwin studied the work of _______________ ______________:
Charles Lyell’s Principles of Geology talked about the age of the earth being ____________________________
Most people believed earth to be only thousands of years old

8. Inventing the Theory of Natural Selection
Thomas Malthus’s Essay on the Principle of Population (1798)
Populations grow ____________ but resources grow ___________________.
Organisms have the potential to produce more offspring than can survive
Limited by _____________________

9. Darwin’s Evidence
Darwin observed characteristics of similar species varied from ___________________ _______________________.
Geographical patterns suggested lineages gradually change as species _____________.
Animals and plants on relatively young islands closely _____________ those on nearby South American coast.

10. Inventing the Theory of Natural Selection
Darwin made the association that individuals that possess certain characteristics are __________________________________ than those that do not possess those characteristics.
________________ characteristics are passed on to offspring.
Over time, frequency of the favorable characteristics increases in the population.

11. Inventing the Theory of Natural Selection
Darwin knew animal breeders _____________ certain varieties to produce certain characteristics (artificial selection).
Noted character differences appeared to be greater than those in wild populations.
Suggested evolutionary changes could occur in ________________________ as well.
Natural Selection

12. Inventing the Theory of Natural Selection
Darwin’s Timeline
Original draft of The Origin of Species finished in ___________.
Shelved for 16 years.
Alfred Wallace sent manuscript with similar ideas to Darwin in 1858.
The Origin of Species released in November ____________.

13. Evolution After Darwin: More Evidence
Fossil Record-
shows organisms have ____________
Age of the Earth-
shows Earth is quite _______________
Mechanisms of Heredity-
DNA shows ______________ among living things
Comparative Anatomy-
shows __________________
Molecular Biology-
shows _______________
Development Patterns-
shows _________________

14. Copyright © McGraw-Hill Companies Permission required for reproduction or display
Raven - Johnson - Biology: 6th Ed. - All Rights Reserved - McGraw Hill Companies