Biosphere Review

What is most likely to happen to a marine ecosystem if its nutrient availability decreases?

• decreased biodiversity

• decreased sediment

• increased biodiversity

• increased amount of oxygen

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which is a biotic factor that could affect an ecosystem?

• dust storms moving through an ecosystem

• bacteria harming the health of organisms in an ecosystem

• large amounts of acid rain precipitation seeping into the soil in an ecosystem

• high levels of carbon dioxide entering the atmosphere within an ecosystem

Tags

NGSS.MS-LS2-4

Which factor will have the least negative impact on the biodiversity of Earth’s ecosystems as the human population continues to grow?

• high levels of agricultural pollution in freshwater supplies

• introduction of invasive species through urban development

• overharvesting of all plants, leading to a lack of food sources for some animal species

• increasing photosynthetic productivity of aquatic ecosystems by introducing native plants

Tags

NGSS.MS-ESS3-4

Which activity negatively affects an environment’s biodiversity?

• deforestation that leads to increased habitat loss

• fossil fuel use that causes an increase in oxygen levels

• fertilizer use that causes a decrease in freshwater nitrogen levels

• urban development that leads to a decrease in the introduction of invasive species

Tags

NGSS.HS-ESS3-4

NGSS.HS-LS2-7

NGSS.HS-LS4-5

How does the introduction of an invasive species affect an ecosystem?

• by protecting native species from predators

• by attracting more predators to the area

• by competing for space and food with native species

• by increasing the biodiversity of the ecosystem

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Two farmers decide to plant fewer types of corn in their fields. How will changing the biodiversity of the corn crop affect the fields?

• Predator species that eat corn will lose their food source.

• Planting fewer types of corn will add more nutrients to the soil.

• The introduction of invasive plant pathogens will increase the crop yield.

• Planting fewer types of corn will make the corn more vulnerable to plant pathogens.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Why is it important to conserve the biodiversity of Earth?

• to decrease the amount of global predator populations

• to decrease the stability of major global ocean currents

• to increase the stability of ecosystems during environmental changes

• to increase the amount of nonrenewable resources located in the lithosphere

Tags

NGSS.MS-LS2-5

What is the correct order of organization of ecology from least to greatest?

• population, organism, community, biome, ecosystem

• organism, population, community, ecosystem, biome

• biome, ecosystem, population, community, organism

• organism, community, population, ecosystem, biome

How could the introduction of a nonnative species of plant affect an ecosystem in North Carolina?

• It could pollinate the native plant species, producing a new species.

• It could reduce the competition for space and light with native plant species.

• It could take over the habitats of the native plant species.

• It could cause some insect species to destroy native plant species.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which of the following lists has ONLY biotic factors?
 

• snail, algae, guppy, sunlight
• temperature, water flea, snail, guppy

• snail, guppy, water flea, algae

• temperature, pH, conductivity, nitrogen

Tags

NGSS.MS-LS1-4