Global Ecology and Conservation Biology

Which of the following ecological locations has the greatest species diversity?

• tundra
• deciduous forest
• tropical rainforest
• grasslands
• islands

Tags

NGSS.MS-LS2-5

Invasive species are introduced by humans to new geographic locations and

• are successful in colonizing a novel area.
• spread because they encounter none of their natural predators.
• All choices are correct
• can outcompete and displace native species for biotic and abiotic resources.
• are usually considered pests by ecologists.

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-2

Which of the following provides the best evidence of a biodiversity crisis?

• the incursion of a non-native species
• increasing pollution levels
• decrease in regional productivity
• high rate of extinction
• climate change

Tags

NGSS.MS-LS2-5

Although extinction is a natural process, current extinctions are of concern to environmentalists because

• more animals than ever before are going extinct.
• most current extinctions are caused by introduced species.
• the rate of extinction is higher than background extinction rates.
• current extinction is primarily affecting plant diversity.
• None of the options are correct

Tags

NGSS.MS-LS4-1

Which of the following terms includes all of the others?

• species diversity
• biodiversity
• genetic diversity
• ecosystem diversity
• species richness

Tags

NGSS.MS-LS2-5

According to the U.S. Endangered Species Act (ESA), the difference between an endangered species and a threatened one is that

• an endangered species is closer to extinction.
• a threatened species is closer to extinction.
• threatened species are endangered species outside the U.S. borders.
• endangered species are mainly tropical.
• only endangered species are vertebrates.

We should care about loss in biodiversity in the populations of other species because of

• biophilia.
• potential loss of medicines and other products yet undiscovered from threatened species.
• potential loss of genes, some of which may code for proteins useful to humans.
• the risk to global ecological stability.
• All of the options are correct.

Tags

NGSS.HS-LS2-7

NGSS.HS-LS4-5

Burning fossil fuels releases oxides of sulfur and nitrogen. These air pollutants can be responsible for

• the death of fish in lakes.
• precipitation with a pH as low as 3.0.
• calcium deficiency in soils.
• direct damage to plants by leaching nutrients from the leaves.
• All of the options are correct.

Tags

NGSS.MS-ESS3-4

Agricultural lands frequently require nutrient augmentation because

• nitrogen-fixing bacteria are not as plentiful in agricultural soils because of the use of pesticides.
• the nutrients that become the biomass of plants are not cycled back to the soil on lands where they are harvested.
• land that is available for agriculture tends to be nutrient-poor.
• grains raised for feeding livestock must be fortified, and thus require additional nutrients.
• cultivation of agricultural land inhibits the decomposition of organic matter.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Which of the following refers to the reflecting and absorption of infrared radiation by atmospheric methane, carbon dioxide, and water?

• depletion of ozone layer
• acid precipitation
• biological magnification
• greenhouse effect
• eutrophication

Tags

NGSS.HS-ESS2-4

NGSS.HS-ESS2-6