What are the four key problems that 21st century ecologists must face?
1. human population growth continues to accelerate 2. biological diversity continues to decrease 3. use of unsustainable resources continues and continues to increase 4. the levels of CO2 continue to rise, causing global warming
What are the basic steps of the scientific method?
1. observation 2. question 3. hypothesis (Ho null hypothesis - statement of no difference) (HA alternative hypothesis- statement of difference 4. experiment 5.
that which does NOT receive treatment in the experiment
you need more than one sample to make it legit
don't pick and choose which samples to examine, be random
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