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Bio 30 Note Taking & Review
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October 05, 2016
Biology 30 Review
Bio 30 Note Taking & Review
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October 05, 2016
The seven characteristics of life include: > responsiveness to the environment; > growth and change; > ability to reproduce; > have a metabolism and breathe; > maintain homeostasis; > being made of cells; and. > passing traits onto offspring.
Biology 30 What constitutes life?What are the characteristics of life?
Does this flower constitute life? Why?
Bio 30 Note Taking & Review
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October 05, 2016
What constitutes Life?
What are the characteristics of life?
Bio 30 Note Taking & Review
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October 05, 2016
Biology 30 What constitutes life?What are the characteristics of life?
Many living organisms are adapted to specific temperatures. This is an
example of which characteristic of life?
A. use of energy
B. reproductive ability
C. growth and development
D. maintaining homeostasis
Departmental Relationship
Homeostasis is the ability of an organism to maintain a stable internal environment even though the external environment may change.
Bio 30 Note Taking & Review
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October 05, 2016
Biology 30 What constitutes life?What are Viruses, Virions, and Prions? How do they affect living and nonliving things?
Virus:
Viroid:
Prion:
An infectious particle made only of a strand of DNA or RNA surrounded by a protein coat.
Infectious particles that cause disease in plants. Made of a single strand of RNA without a protein coat.
Infectious particle made only of proteins that can cause other proteins to fold incorrectly. When proteins misfold, it will not work properly. They contain no genetic material.
Bio 30 Note Taking & Review
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October 05, 2016
What constitutes Life?
What are viruses, viroids, and prions?
Bio 30 Note Taking & Review
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October 05, 2016
Biology 30 What constitutes life?MillerUrey Experiment
Was a chemical experiment that simulated the conditions thought at the time to be present on the early Earth, and tested the chemical origin of life under those conditions.
https://en.wikipedia.org/wiki/Miller%E2%80%93Urey_experiment
Bio 30 Note Taking & Review
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October 05, 2016
Biology 30 What constitutes life?MillerUrey Experiment
A. Inorganic compounds can become
organic compounds with the input
of energy.
B. Organic compounds can become
inorganic compounds with the
input of energy.
C. Inorganic compounds can become
organic compounds without the
input of energy.
D. Organic compounds can become
inorganic compounds without the
input of energy.
Departmental Relationship
Miller and Urey designed a chemical experiment to demonstrate how several organic compounds could be formed spontaneously from inorganic chemicals that were present on primitive Earth.
What did the MillerUrey experiment demonstrate?
Bio 30 Note Taking & Review
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October 05, 2016
What constitutes Life?
What is the MU Experiment?
Bio 30 Note Taking & Review
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October 05, 2016
Biology 30 EvolutionTheory of Natural Selection pp. 286 291
Key Vocabulary:
Artificial Selection
Heritability
Natural Selection
Population
Fitness
Phenotypes
Genotypes
Artificial Selection
Humans act as the selective agent.
Example: Darwin's Pigeons the lesser known Darwin bird.
Natural Selection
Environment acts as the selective agent.
Darwin noticed that perfect breeds could not happen at once, but over generations.
Bio 30 Note Taking & Review
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October 05, 2016
Biology 30 EvolutionTheory of Natural Selection pp. 286 291
Key Vocabulary:
Artificial Selection
Heritability
Natural Selection
Population
Fitness
Phenotypes
Genotypes
Four Main Principles of Natural Selection
1) Variation the heritable differences that exist in a population are the basis for natural selection. Results from differences in genetic material, either from parent or mutation.
What is an example?
Bio 30 Note Taking & Review
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October 05, 2016
Biology 30 EvolutionTheory of Natural Selection pp. 286 291
Key Vocabulary:
Artificial Selection
Heritability
Natural Selection
Population
Fitness
Phenotypes
Genotypes
Four Main Principles of Natural Selection
2) Overproduction More offspring increases chances of survival but creates competition for resources between offspring.
What is an example?
Bio 30 Note Taking & Review
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October 05, 2016
Biology 30 EvolutionTheory of Natural Selection pp. 286 291
Key Vocabulary:
Artificial Selection
Heritability
Natural Selection
Population
Fitness
Phenotypes
Genotypes
Four Main Principles of Natural Selection
3) Adaptation a certain variation allows an individual to survive better as it competes against the environment. This enables them to reproduce and thrive.
What is an example?
Bio 30 Note Taking & Review
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October 05, 2016
Biology 30 EvolutionTheory of Natural Selection pp. 286 291
Key Vocabulary:
Artificial Selection
Heritability
Natural Selection
Population
Fitness
Phenotypes
Genotypes
Four Main Principles of Natural Selection
4) Descent with Modification over time species with adaptations that are suited for survival will continue to reproduce leaving a trail of genetic material.
What is an example?
Bio 30 Note Taking & Review
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October 05, 2016
Biology 30 EvolutionTheory of Natural Selection
The survival of organisms with advantageous characteristics illustrates
which of the following concepts?
A. genetic drift
B. natural selection
C. common ancestry
D. descent with modifications
Departmental Relationship
This is the basis of natural selection.
Bio 30 Note Taking & Review
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October 05, 2016
Biology 30 EvolutionTheory of Natural Selection pp. 286 291
Key Vocabulary:
Artificial Selection
Heritability
Natural Selection
Population
Fitness
Phenotypes
Genotypes
Natural selection acts on existing variations
acts on physical traits rather than genetic material because the environment has no impact on genetic material.
variations must exist prior to the occurrence of natural selection.
variations may become adaptive compromises, a change occurred, but might not be for the reasons we observe.
Bio 30 Note Taking & Review
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October 05, 2016
Biology 30 EvolutionEvidence of Evolution pp. 292 296
Key Vocabulary:
homologous structure
analogous structure
vestigial structure
Evidence for evolution comes from several sources
Fossils
Geography
Embryology
Anatomy
Enhance with Reading!
What structure can be used to observe patterns in organisms?
Bio 30 Note Taking & Review
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October 05, 2016
Biology 30 EvolutionEvidence of Evolution pp. 338 341
Key Vocabulary:
Permineralization
The Fossil Record
Most fossils form in sedimentary rock.
Based upon depth, due to layers continually being added over time, we can assume a fossil that is 32m deep is older than a fossil that is 22m deep. These numbers are used for example purposes.
Enhance with reading!
What is the most common form of fossil?
Why are so few complete fossils discovered?
Bio 30 Note Taking & Review
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October 05, 2016
Biology 30 EvolutionEvidence of Evolution pp. 338 341
Key Vocabulary:
Relative Dating
Radiometric Dating
Isotope
Halflife
Radiometric dating provides an accurate estimate of a fossil's age.
using Carbon14 we can determine with greater accuracy the age of remains that have been discovered.
Enhance with Reading!
Describe the process of Radiocarbon Dating as found on pg. 340.
