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science final exam

Environmental science exam

What does the lake or ocean effect have on temperature or climate in general? There is more precipitation and temperature generally stays more stable, water helps hold the temperature where it is
Know the difference between primary succession and secondary succession. Where can it occur? Why is is so much slower than the other? primary - occurs when new ecosystem develops where there was none before (why it takes longer); located in any open land, Secondary occurs following disruption of an existing ecosystem (such as a fire), doesn't take a long because soil is already in place
Know the difference between eutrophic and oligotrophic eutrophic - full of algae and nutrients (green), oligotrophic - clear, low in nutrients
What is the difference between streams and rivers? stream - narrow channels of water often beginning in mountainous areas; river - larger body of water (a stream forms a river)
Characteristics of a developed and developing countries developed: high income, high life span, lower population growth; developing: low income, lower life span, higher population growth
Discuss and understand the tragedy of commons area that belongs to no individual; shared by the entire society (air, oceans)
Renewable resource it can be replenished within a human lifetime (trees, grass)
nonrenewable resource can be used up within a lifetime (coal or oil)
Discuss why it's important for scientific studies to be published and reproducible It needs to be published so it can be shared with the world. It needs to reproducible so that it can be proven
Why is having a larger sample size better than a smaller one? the larger the sample size the more reliable the results will be
What is the difference between a blind and a double-blind experiment? in a blind it is conducted so the subjects don't know which is the control and which is the experimental group. The double-blind prevents both the scientist and the subjects from not knowing which is the control or which is the experimental group
Which experiment prevents bias? double-blind because neither the subject nor the scientist know
What factors influence life expectancy? fertility rate and gross domestic product (GDP)
What are some biogeochemical cycles (list some) Water cycle, carbon cycle, nitrogen cycle
Label an atom with protons, neutrons, and electrons
protons located inside the nucleus
neutrons located inside the nucleus
electrons live outside the atoms, orbits the nucleus
What three wavelengths are found in sunlight? ultraviolet -damages skin tissue, visible - range of wavelengths seen by eyes, and infrared - heat energy
What wavelengths are used specifically for photosynthesis everything but green
Which two classification taxa are used to define a species' scientific name? Genus species
Why is having a scientific name so important? it is the universal term known world wide
predator-prey one organism consumes the other ex: cat and mouse
Intraspecific competition competition that occurs within members of the same species
Interspecific competition competition that occurs between different species ex: for water, territory
Mutualism Relationship that benefits both organisms
Commensalism one organism benefits and the other is neither harmed nor helped
Parasitism one organism benefits at the expense of the other
Describe the differences between natural and artificial selection natural - something that happens in nature, artificial - taken two different breeds and merged them together
Created by: a.allsup