5 Written questions
5 Matching questions
- A natural ecosystem, undamaged by human activity, is
- zoooplankton-eating fish are
- The origins in all phosphorus in biological tissue is
- Prairie dogs constantly dig though the soil, making new burrows. They est the grasses, roots and all. This probably contributes
- humans have dramatically altered the rate of nitrogen fixation into forms usable by autotrophs
- a a closed system of organic and inorganic materials as well as energy; where everything is recycled.
- b secondary consumers
- c as we produce synthetics fertilizers and apply them to crops, lawns and parks
- d E) prairie dogs were part of a negative feedback loop once they were removed
- e or phosphorus dissolved int he ocean and taken up by shellfis
5 Multiple choice questions
- Efforts at urban restoration intend to undo damage done to communities due to urban development.
- public education, introduction of appropriate predators , examination of imported goods.
- feed on and harm
- intraspecific competition
5 True/False questions
the largest pools of carbon in the carbon cycle are → are helped by the presence of zebra mussels
Aquifers are → are required in large amounts for organism to survive
A small section of prairie grasses, over a year, produces enough biomass to feed insects, mice, rabbits, birds, deer, antelope, and a host of decomposers. The amount of food potentially available to the herbivores is the → net primary production
which of the following are pioneer species → lichens
When the rains came down on the rocky mountainsides, the water ran down into the grasslands where the
prairie dogs were active and ________. → sedimentary rocks and fossil fuels