Characteristics of Life
Nature of Science/Scientific Method
Lab Equipment/Safety
Biogeochemical Cycles
Other Ecology
100
Complete the statement about the characteristic of life. All living things are made of one or more _________.
cells
100
What is an independent variable?
the thing that the experimenter changes on purpose
100
Which piece of lab equipment is used to cut during dissections?
scalpel
100
What 4 biogeochemical cycles did we learn about?
water, carbon, nitrogen, phosphorous
100
What are 3 examples of abiotic factors?
wind, sunlight, water, etc.
200
Which characteristic of life shows that organisms make more of their own kind from one generation to the next?
reproduction
200
What is a dependent variable?
the responding variable, changes as a result of the independent variable, what you measure in the experiment
200
Why is it important to properly dispose of chemicals at the end of an experiment?
could harm the environment, could react with other chemicals in the wrong container or drain
200
What process takes carbon out of the atmosphere?
photosynthesis
200
What are the 3 types of symbiotic relationships? Use symbols (+, -, 0) to represent each one.
mutualism + + commensalism + 0 parasitism + -
300
What is the difference between growth and development?
growth is getting larger in size, development is a natural change i.e. puberty, menopause, etc.
300
What group, which is present in any good experiment, serves as a basis for comparison?
control group
300
What is the proper way to clean glassware at the end of an experiment? Be specific!
with soap, warm water, and a test tube brush
300
Where does most of the nitrogen cycle occur?
in the soil
300
Give an example of something that would cause primary succession and something that would cause secondary succession.
primary-volcano eruption, glacier moving secondary-forest fire, tilling field, deforestation
400
What is homeostasis?
maintaining internal environment
400
You are doing an experiment testing the effects of different colors of light (blue, green, and red) on plant growth. What are 3 constants for this experiment?
type of plant, time exposed to light, brightness of light, temperature, amount of water, etc.
400
Which piece of glassware is used for observing small reactions?
test tube
400
What is the main difference between the phosphorous cycle and the other cycles?
there is no atmospheric form of phosphorous
400
What is a detritivore?
an organism that eats tissue from dead organisms
500
Which characteristic of living things would explain why birds fly south for the winter?
response to stimuli
500
What is the difference between a theory and a law?
a theory explains why something happens, and a law describes what happens under certain conditions
500
Which piece of lab equipment is used for measuring precise volumes of liquid (besides a pipette)?
graduated cylinder
500
What is nitrogen fixation?
when bacteria take nitrogen gas out of the atmosphere and create ammonia
500
Explain why there are always fewer primary consumers than producers, and even fewer secondary consumers in any ecosystem.
because of the 10% rule, 90% of energy is lost as you go up each trophic level, so it takes a lot of producers to support just a few upper level consumers
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