All living things have cells/contain DNA Ex

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• What are the 7 characteristics of life and give an example of an
animal, plant, bacteria, or other living thing using these traits.
• All living things have cells/contain DNA
• Ex: a dog has cells that can be viewed under a microscope
• All living things respond to stimuli
• Ex: dog wagging tail or scratching ears
• All living things maintain homeostasis
• Ex: dog’s average temperature needs to stay between 100-102oF
• All living things need metabolism
• Ex: dogs eat dog food in order to get nutrients
• All living things grow and develop
• Ex: dogs grow from a puppy to adult
• All living things are able to reproduce
• Ex: dogs can birth a litter of puppies
• All living things evolve
• Ex: dog’s show common ancestors with other animals
• What are the three domains of life?
• Archaea
• Bacteria
• Eukarya
• What does it mean if something is a theory?
• It is a highly tested experiment that the results can be replicated by many
scientists and is generally accepted in science.
• What are the steps to the scientific method?
• Observation  question  form a hypothesis  test with experiment 
data and analysis  conclusion  theory
• What is the organization from cells  organism?
• Cells  tissue
 organ  organ system  Organism
• What is the definition of ecology?
• The study of relationships and interactions of organisms in their ecosystem and
environment
• What is a hypothesis? What can it lead to?
• A hypothesis is an educated guess that can be tested and be supported or rejected. It
can lead to a theory
• How can you tell if an experiment is controlled or not?
• In order for an experiment to be controlled you need a control group and an
experimental group. The control group stays the same, the results are known, and
you use this to compare your results to the experimental group. The experimental
group is the changing group where one variable has been altered.
• What type of graph/chart is best used to show percentages of a whole?
• Circle graph/Pie Chart
• When should you use a bar graph?
• A bar graph is best used when comparing data with other numbers or categories.
• When should you use a line graph?
• A line graph is best used when plotting data over a period of time.
• Explain the differences between the independent and dependent variable.
• An independent variable is what is being tested.
• A dependent variable is the results or response to the experiment.
• What are the three important parts of a graph that should always be
included?
• Title you graph
• Label your axis
• Set your intervals or plot your data
• What are the three types of microscopes talked about in class?
• Light Microscope (used in class)
• Transmission Electron Microscope (TEM)
• Scanning Electron Microscope (SEM)
• How do you calculate magnification?
• To calculate magnification you need to multiply to ocular lens by the
objective lens. Ex: an ocular lens of 10x and an objective lens of 40x will give
you a magnification of 400x.
• Walk through the steps of focusing a specimen from scanning power to high power.
Include parts of the microscope including which adjustments knob and magnification.
• To start you place your slide on the stage using the stage clips.
• Make sure your objective lens is in scanning power (4x) and use the coarse adjustment knob to
put the specimen in focus. The magnification is 40x.
• Then, move your objective lens to low power (10x) and use the fine adjustment knob to sharpen
the image. The magnification is 100x.
• Finally, move the objective lens to high power (40x) and use the fine adjustment knob to
sharpen the image. The magnification is 400x.
• What are the differences between coarse adjustment and fine adjustment knobs?
• The coarse adjustment knobs is used when in scanning or low power and is used to focus in on a
specimen. This knob is the larger of the two.
• The fine adjustment knob is used when in high power only and is used to sharpen the specimen.
This is the smaller of the two knobs.
• How do you properly hold a microscope?
• To properly hold a microscope, you need to hold it by the arm and have you other hand under
the base of the microscope.
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