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Module #10 Test
Biology
Question | Answer |
---|---|
Define Ecology | the study of the interactions between living and non-living things. |
Define Population | a group of interbreeding organisms coexisting together |
Define Community | a group of populations living and interacting in the same area |
Define Ecosystem | an association of living organisms and their physical environment |
Define Biome | a group of ecosystems classified by climate and plant life |
Define Primary Consumers | an organism that eats producers |
Define Secondary Consumers | an organism that eats primary consumers |
Define Tertiary Consumers | an organism that eats secondary consumers |
Define Ecological Pyramid | a diagram that shows the biomass of organisms at each trophic level |
Define Biomass | a measure of the total dry mass of organisms within a particular region |
Define Transpiration | evaporation of water from the leaves of a plant |
Define Watershed | an ecosystem where all water runoff drains into a single body of water |
Define Greenhouse Effect | the process by which certain gases trap heat that would otherwise escape the earth and radiate into space |
When fruits and vegetables are important into the U.S. from a foreign country, they are always very closely inspected for insects, even though the majority of the insects are not really harmful. Why is the inspection done? | because it can ruin the balance of the ecosystem |
Which two trophic levels have the greatest disparity in biomass? | primary consumers and secondary consumers |
Between two trophic levels is the smallest amount of energy wasted? | producer and primary consumers |
Name the participants in the three new symbiotic relationships that we learned in this module. | Clownfish and Sea Anemone, Oriental Sweet-lips and blue-streaked wrasse, and Blind Shrimp and Goby |
What fundamental assumption of macroevolution does mutualism seem to contradict? | they struggle for survival |
Why doesn't the ocean lose water? | because the excess water from land runs into the ocean |
What does the water cycle accomplish besides balancing the water in an ecosystem? | it transports the nutrients |
What is the possible consequence if deforestation occurs in a watershed? | too many nutrients would flow into the water, causing the ecosystem to become off balance |
What is the principal means by which oxygen is taken from the air? What is the principal means it is restored to the air? | respiration; photosynthesis |
Name the other ways that oxygen is removed from the air. | ozone formation, rusting of metals and mineral, and fire |
Name the other ways that oxygen is replenished in the air. | ozone destruction and water vapor destruction |
Name the ways carbon dioxide is removed from the air. | dissolving into the ocean and photosynthesis |
Name the ways in which carbon dioxide is replenished in the air. | fuel burning, fire, respiration, and decomposition |
What human activity worries those who think that global warming is a problem? | Burning fuel |
Is human-produced global warming occurring now? | No |
What is nitrogen-fixation? What type of organisms perform it? | It converts nitrogen gas into chemically active molecules that many organisms can use; nitrogen-fixing bacteria |
What two ways does that nitrogen in organisms get put back in to the environment? | Waste and Decomposition |