Cumulative Exam — Cumulative exam Answers

Carnivores have sharp, pointed teeth that allow them to tear flesh from prey. What type of adaptation is this?a.Behaviorb.Biochemicalc.Physiologicald.Ecological

Arrange the events of succession after a volcano erupted in their proper order. a. pioneer species, plant growth, soil formation b. pioneer species, soil formation, plant growth c. soil formation, pioneer species, plant growth d. soil formation, plant growth, pioneer species Please select the best answer from the choices provided

Earth’s cycles provide organisms with continued access to usable elements necessary for sustaining life.

Freshwater biomes have _______.a.organisms adjusted to high salinityb.more diversity than marine biomesc.a salinity of less than 1%d.the ability to maintain their temperature year round

A species that has experienced a severe bottleneck event would be expected to _______.a.be better able to adapt to changing environmental pressuresb.have few instances of inbreedingc.be more susceptible to disease and famined.retain significant genetic diversity

Why is phytoplankton located near the ocean’s surface?a.It cannot live in areas of high salinity.b.It can more easily evade predators on the oceans’s surface.c.It needs access to oxygen only found at the ocean’s surface.d.It needs sunlight to survive.

How is water transferred from the air to the ground?a.transpirationb.precipitationc.evaporationd.all of the above

Why are a variety of instruments needed to measure change in the climate system?a.A different type of instrument is needed for each different climate.b.The climate system involves a number of different factors that are measured differently.c.Climate is determined over a number of years, rather than a short period of time.d.Different areas have developed different instruments to measure climate change.

Global climate change will have no impact to life on the Earth.

Aquatic ecosystems support more primary producers proportional to their area than terrestrial ecosystems.

A clown fish takes shelter in a sea anemone, protecting the sea anemone by chasing away butterfly fish. What two types of interactions are described in this scenario?a.Predation and commensalismb.Predation and mutualismc.Competition and commensalismd.Competition and mutualism

The cracking of rock due to heat is an example of _______.a.erosionb.physical weatheringc.chemical weatheringd.none of the above

The population of bison in a prairie ecosystem has significantly declined. What will most likely happen to the grass population the bison feeds on?a.The grass population will increase.b.The grass population will decrease.c.The grass population will be wiped out.d.The grass population will remain unchanged.

Which of the following is considered an arid biome?a.grasslandb.desertc.savannad.rainforest

What pattern of material movement found in the Earth system tracks how an element moves from living to nonliving parts?a.rock cycleb.calcium cyclec.carbon cycled.none of the above

Land clearing and irrigation in Australia have only resulted in an increase in the amount of land available for use as farmland.

Which of the following statements about large scale mineral extraction is true?a.The economic benefits of large scale mineral extraction outweigh the environmental costs.b.Large scale mineral extraction is more destructive than in the past.c.Large scale extraction is vital to the economy of mining towns.d.Mineral extraction cannot be done in ways that do not completely destroy the environment.

Which of the following does not occupy the bottom of an energy pyramid?a.phytoplanktonb.treesc.grassd.zooplankton

Competitive exclusion controls population size.

Which of the following is not a part of Earth’s system?a.hydrosphereb.geospherec.biosphered.chronosphere