1 / 18

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. Ch 1 Review What is Biology. What does it mean if someone tells you it is important to maintain a large biodiversity ?. Hint

megara
Download Presentation

Ch 1 Review What is Biology

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. This is my first attempt at putting a podcast on the wiki site. If you have problems or suggestions- please let me know. Ch 1 Review What is Biology

  2. 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?

  3. Explain how the following are related Quantitative- measured numbers-qualitative- description from your observations Hypothesis- idea before the experimentexperiment – the test of your hypothesis Evolution- gradual change in a speciesadaptation- better fit your changing environment

  4. 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.

  5. 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.

  6. 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

  7. 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

  8. 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.

  9. Give an example of Response- a reaction stimulus causes a response – • Homeostasis • Conditions in the body need to stay the same • Sweat- hotcool • Shivering-cool warm

  10. What is the scientific method? • What are the steps of the scientific method- in order? • Problem, hypothesis, experiment, results, analyze, conclusion

  11. List the characteristics of life • Organization- (orderly structure); cell • produce offspring, reproduction • grow (get larger)& develop (changes) • adjust to changes in env.]; Adaptation

  12. 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- growPuberty - developmentCamouflage- adaptation

  13. Draw the basic safety symbols and know what they mean • Fire • Poisons • Biohazard • Fume danger • Do not use- sign

  14. 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).

  15. 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?

  16. 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.

  17. 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

  18. Pg 1099Read a chart and draw conclusions http://www.glencoe.com/sec/science/sc_interactions/si1/skill_handbook/oinfo.shtmlDraw a graph from information provided in a table. http://nces.ed.gov/nceskids/createagraph/http://nces.ed.gov/nceskids/help/user_guide/graph/index.asphttp://misterguch.brinkster.net/graph.htmlAnalyze the organized information and provide conclusions based on that analysis.

More Related