Populations and the Environment Answers

Sedimentation accumulation found in bodies of water can be the result of _______.a.fertilizer runoffb.pesticides and herbicidesc.erosion from agricultural practicesd.all of the above

If a stationary body of water has a constant temperature from top to bottom it is most likely a(n) _______.a.lakeb.pondc.oceand.lagoon

Which of the following best explains why deforestation increases the risk of floods in an area?a.Tree leaves catch and retain rain water.b.Trees block the free flow of water.c.Deforestation increases precipitation.d.Tree roots improve soil water retention.

Which of the following is a specialist species?a.Giant Pandasb.Horsesc.Humansd.Rabbits

Which of the following is not an example of interactions between biotic and abiotic factors in an ecosystem?a.flowers opening at dawn and closing at nightb.bears hibernating in winterc.male elk fighting over a femaled.Monarch butterflies migrating to Mexico for the winter

How can an increase in biodiversity lead to an increase in ecosystem stability?a.A more biodiverse ecosystem is not subject to change.b.A more biodiverse ecosystem has a higher chance of adapting to species changes.c.A more biodiverse ecosystem has fewer species types to balance.d.A more biodiverse ecosystem is subject to fewer natural disasters.

Hurricanes are more destructive than tornados due to _______.a.coastal storm surgesb.their shorter durationc.the combination of high winds and flood watersd.all of the above

Variation of ecological habitats within a species is characteristic of which type of diversity?a.Genetic diversityb.Ecosystem diversityc.Species diversityd.Regional diversity

Changes to _______ can be ascribed to glacial melting.a.Earth’s surfaceb.CO2 levelsc.coral reefsd.water pollution

The inversion of terrestrial and aquatic energy pyramids is dependent upon the nature of that environment’s particular _______.a.decomposersb.climatec.primary consumersd.producers

Consider the following food chain:Garden plants are eaten by snails, which are eaten by birds, which are eaten by the household cat.

Explain which three marine habitats would have the least access to phytoplankton, and why.

Explain how human activities can intensify, or even cause a landslide.

Explain how the disposal of human waste could worsen the effects of hurricanes on coastal communities.