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.