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CH 1 REVIEW
WHAT IS BIOLOGY
This is my first
attempt at putting
a podcast on the
wiki site.
If you have
problems or
suggestions-
please let me
know.
WHAT DOES IT MEAN IF SOMEONE TELLS YOU IT IS IMPORTANT TO MAINTAIN A LARGE BIODIVERSITY?
Hint
Think of what would happen if there were only 4
types of food or animals left alive
What would you need to do to (environment)
make a species habitat more stable?
Quantitative- measured numbers-qualitative- description from your observations
Hypothesis- idea before the experiment experiment – the test of your hypothesis
Evolution- gradual change in a speciesadaptation- better fit your changing environment
EXPLAIN HOW THE FOLLOWING ARE RELATED
Explain how the following are related
• Evolution- species change
• Development- is when an organism changes
• Data- material gathered result
• Independent• - I chose what is to be tested
• Dependent variables (responding)- the change that results
• Organism- 1 living thing• -species- a group of
organisms that can interbreed and have fertile offspring.
EXPLAIN HOW THE FOLLOWING ARE RELATED
•Technology - science to solve problems-
• It can NOT solve all problems•Not all bad or all good
•Ethics- moral/belief in what is right or wrong.
WHAT ARE THE ADVANTAGES
of using graphs?
List of numbers and charts are difficult to analyze.
Graphs easily show relationships
Of using the SI system of measurement?
_______________
• Fewer units
• Conversion is easier
• It is the standard used by all scientist
WHAT IS THE DIFFERENCE BETWEEN
a hypothesis- educated guess (before test)
Repeated verifications over time leads to the
development of a theory
a theory explains how nature works; supported by
exp over time- continually verified.
a laws- a law describes what nature does under
certain conditions
EXPERIMENTS MUST HAVE AN EXPERIMENTAL GROUP,
BUT NOT ALL WILL HAVE A CONTROL. WHY?
Investigative research based on collecting observed data may
not be appropriate to have a control. (not ethical or impractical)
Controls are extremely useful where the experimental conditions
are complex and difficult to isolate.
GIVE AN EXAMPLE OF
Response- a reaction
stimulus causes a response –
Homeostasis
Conditions in the body need to stay the same
Sweat- hotcool
Shivering-cool warm
What is the
scientific
method?
What are the
steps of the
scientific
method- in
order? Problem, hypothesis,
experiment, results,
analyze, conclusion
LIST THE CHARACTERISTICS OF LIFE
• Organization- (orderly structure); cell
• produce offspring, reproduction
• grow (get larger)& develop (changes)
• adjust to changes in env.]; Adaptation
WHAT ARE THE CHARACTERISTICS OF LIFE FOR THE FOLLOWING?
Organization- (orderly structure); produce offspring,
grow & development; adjust to changes in env.]
The lengthening of fingernails- grow
Puberty - development
Camouflage- adaptation
DRAW THE BASIC SAFETY SYMBOLS AND KNOW WHAT THEY MEAN
•Fire
•Poisons
•Biohazard
•Fume danger
• Do not use- sign
WHAT IS NEEDED TO DEVELOP A GOOD HYPOTHESIS?
Is there an answer that would be yes/no- prove or disprove.
An Experiment is an organized test with controlled condition. Control- part of exp that is the standard for comparison(does not include the experimental treatment).
The experimental group is the test group that receives experimental treatment.
In a controlled exp. Only 1 condition at a time is tested (independent variable).
The dependent variable is the change that results (responding)
Non control exp are used for investigation (field work).
IDENTIFY THE DEPENDENT (RESPONDS) AND THE
INDEPENDENT VARIABLES (YOU CHOOSE TO TEST)
•What hair
spray holds
hair in place
the best?
What type of heater is most effective in heating a room?
• The level of detail allowed by the tools
available determines the accuracy in the
experimental measurement.
• In the analysis of an exp. you determine how
the results can be compared and if there are
other conditions to consider or test.
• Use a journal to record the results (publish).
• To verify an exp it must be repeatable.
BE ABLE TO WRITE A SIMPLE EXPERIMENT- LAUNDRY
DETERGENT
AND IDENTIFY THE
• CONTROL- (DOES NOT INCLUDE THE INDEPENDENT
VARIABLE) NO LAUNDRY DETERGENT
• INDEPENDENT VARIABLE- WHAT IS TESTED-
LAUNDRY DETERGENT
• DEPENDENT – HOW CLEAN THE CLOTHES GOT
PG 1099
READ A CHART AND DRAW CONCLUSIONS
HTTP://WWW.GLENCOE.COM/SEC/SCIENCE/SC_INTERACTIONS/SI1/SKILL
_HANDBOOK/OINFO.SHTML
DRAW A GRAPH FROM INFORMATION PROVIDED IN A TABLE.
HTTP://NCES.ED.GOV/NCESKIDS/CREATEAGRAPH/
HTTP://NCES.ED.GOV/NCESKIDS/HELP/USER_GUIDE/GRAPH/INDEX.ASP
HTTP://MISTERGUCH.BRINKSTER.NET/GRAPH.HTML
ANALYZE THE ORGANIZED INFORMATION AND PROVIDE CONCLUSIONS
BASED ON THAT ANALYSIS.