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Bio Ch 7 Unit Test
Biology Chapter 7 Unit Test
| Question | Answer |
|---|---|
| A benefit of monoculture practices is____. | the ability to grow a lot of food. |
| Breathable air and drinkable water are____. | examples of ecosystems goods and services. |
| Imported plants and animals in Hawaii have____. | caused native species to die out. |
| A developer wants to build a new housing development in or around a large city. Which of the following plans would be least harmful to the environment? | building apartments at the site of an abandoned factory in the city. |
| Which is one negative consequence of the industrial revolution? | environmental harm from burning fossil fuels. |
| An example of a renewable resource is____. | trees |
| Ideally sustainable development should____. | preserve ecosystems while providing for human needs. |
| Introduced species can threaten biodiversity because they can____. | crowd out native species. |
| Biodiversity is valuable partially because it____. | contributes to medicine and agriculture. |
| The number of different species in the biosphere or in a particular area is called____. | species diversity |
| The gray brown haze often found over large cities is called____. | smog |
| DDT was used to____. | kill insects |
| Farmers can reduce soil erosion by____. | contour plowing |
| Which of the following is not considered a sustainable development strategy for management of earth's resources? | desertification |
| Using environmental resources in a way that does not cause long-term environmental harm is like____. | spending on as much money as you earn. |
| Graph; change in global land surface temperature. The data in the graph in figure 6.5 above help ecologists identify which environmental problem? | global warming |
| All of the following are threats to biodiversity except? | habitat preservation |
| One of the greatest threats today to biodiversity is____? | altered habitats |
| Protecting an entire ecosystem ensures that____. | interactions among many species will be preserved. |
| When calculating a population’s ecological footprint one has to take into account the____. | resources needed to clean up the populations waste. |
| According to the principles of_____a suitable system is sufficient when it consumes as little energy and material as possible. | sustainable development |
| Recognizing an environmental problem, finding its cause and showing us how to change our behavior to fix the problem are three ways that_______can guide us toward a sustainable future. | ecology |
| Ecological footprints can be calculated for individual people or for_________. | populations |
| The growth of cities and suburbs can result in_______. | habitat fragmentation |
| Old growth forests are usually considered______. | nonrenewable resources |
| Ecologists believe that climate change is due partially to an increase in the concentration of_____gases in the atmosphere. | greenhouse gases |
| Some ways to preserve biodiversity are to protect individual species and to preserve habitats and____. | ecosystem |
| Rabbits were introduced in Australia in 1859. The rabbits had no natural predators and began to crowd the native animals out of their habitats. When this happened the rabbits became a/an______species. | invasive |
| A location that has 170 species of birds likely has greater_____than a location that has 100 species of birds. | species diversity |
| Increasing concentrations of DDT as it travels up a food chain is an example of____. | biological magnification |
| Tropical rainforests will not grow back after____. | deforestation |
| If the townspeople manage to provide for their own needs without long-term effects on the environment then they have engaged in____. | sustainable development |
| Hydropower uses the energy of flowing water to produce electric energy because water in rivers flows continually. Hydropower is a_____resource. | renewable |
Created by:
P.V.A.