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Welcome to
Biology 100
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Take out a blank
sheet of paper:
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On the sheet of
paper
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Fill out your
first and last name (please print)
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Email used:
runner or other (please print)
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Answer the
following question:
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What courses in
Biology, Chemistry, or other science have you taken (please include any high
school science classes)?
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How choose one
that idicates how many college courses you have taken have required the
use of computers
§ 1= in every class
2=only 2-3 classes 3= 3-4
classes
§ 4= never this will be the first class
Why do I have to take Bio 100 ?
Biology Content Curriculum Requirement
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Biology is
increasingly synthetic in its knowledge and draws on other disciplines
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Modern molecular
biology and biochemistry impact medicine, agriculture
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Biology is
critical for understanding human health & society
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Genetically
engineered crops can help increase harvest yields, yet are viewed with mistrust
by many
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Forensic science
benefits from DNA technology (identifying criminals, freeing wrongfully
accused)
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Human Genome
Project has great potential to help fight and eliminate many diseases, but is
only a first step
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Embryonic stem
cell technologies offer potential to repair damaged tissues and organs –
present ethical concerns
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Animal cloning
presents methods for hormone production, drug delivery, and protection of
endangered species
Research Science
What is Science?
The observation,
identification,
description,
experimental
investigation [scientific method],
and
theoretical explanation
of natural
phenomena.
Scientific Community
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How do scientists exchange ideas?
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Publish the results of experiments in peer
review journals.
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How is scientific research organized or directed?
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Funding goals from granting organizations
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NSF (National Science Foundation)
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NIH (National Institute for Health)
NSF – Funding Goals
Deductive Reasoning
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Concluding a reason/or cause for a natural
phenomenon based upon a general principle
Inductive Reasoning
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Using a observations of natural phenomena to
formulate a general principle
Scientific Method
What are Science Laws and Theories?
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A theory attempts to explain why nature behaves as it does.
Theories are sometimes called "models" for
this reason.
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A law describes how nature behaves without
explaining why nature behaves that way.
Scientific Laws
Scientific Theory
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The Cell Theory
Biology
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The study of living organisms
(Study of life)
§ What
is life?
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Composed of cell(s)
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isolated from
external
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environment by a
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membrane
Biology Themes
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Evolution -
a change in the frequency of alleles (character traits) between
generations.
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Mechanisms – gene flow, genetic drift, natural selection, mutation.
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Ecologists, Physiologists, Paleontology,
Behavioral ecologists, Microbiologists, etc…
Biology Themes
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Flow of Energy
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Ecosystems
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Interactions between species
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Ecologists and Physiologists
Biology Themes
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Cooperation
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Formation of social systems
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Interspecies relationships
Behaviorists,
Behavioral ecologists
Biology Themes
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Structure determines function
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Organisms are limited or can survive in new environments given their
genetic expression of traits.
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Physiologists, Comparative anatomists,
Evolutionary biologist.
Homeostasis
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The maintenance of a stable internal environment.
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Excreting waste products
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Acquiring food
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Maintaining body functions
Physiologists, ecologists
Biological Organization Arises from
Molecular Organization
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Living organisms
display a natural hierarchy of organization and emergent properties that
are more than the simple
sum of their parts
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Atoms lead to
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Molecules, which lead to
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Organelles, which are arranged within
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Cells, which make up
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Tissues, which make
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Organs, which form
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Organ systems, which together make an
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Organism, which is part of a
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Population within a
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Community in an
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Ecosystem, the largest of which is the
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Biosphere (=Earth)