What role do decomposers play in an ecosystem?

They break down dead organic matter

They compete with primary producers

How does decomposition contribute to the carbon cycle?

It releases carbon back into the soil and atmosphere.

It absorbs carbon dioxide from the atmosphere.

It stores carbon in living organisms.

It converts carbon dioxide into oxygen.

What can tree rings tell us about past climates?

The age of a tree and climate conditions during each year of growth

The temperature of the past year

What is the result of ocean acidification on marine life?

Increased growth of coral reefs

Which of the following is a consequence of disrupting the carbon cycle?

Decreased atmospheric oxygen levels

How does cellular respiration fit into the carbon cycle?

It releases carbon dioxide as a byproduct.

It converts carbon dioxide into glucose.

It stores carbon in the form of fossil fuels.

It absorbs carbon from the ocean.

Lake and ocean sediments can provide information about past climates because they contain:

Fossils and chemical compositions

What is one way ice cores can be used to study past climates?

By examining the layers of ice for trapped gases like carbon dioxide

By measuring the amount of volcanic ash

By counting the number of ice layers

How do fossils help scientists understand past climate conditions?

They indicate the type of vegetation and climate of the past

They show the exact temperature of the past

They provide evidence of extinct species

They reveal the cause of climate change

What is the significance of coral records in climate studies?

They show ocean temperature and chemistry changes over time

They indicate the age of the ocean

They provide a habitat for fish

They are unaffected by climate change

Human historical records can help scientists understand past climates by:

Providing firsthand accounts of weather and climate events

Offering predictions for future climate changes

Showing how ancient technology influenced the climate

Describing modern climate trends

How does an increase in soil nitrates affect plant biodiversity?

It increases plant biodiversity by providing more nutrients.

It decreases plant biodiversity by making the soil less fertile.

It has no effect on plant biodiversity.

It decreases plant biodiversity by increasing the soil's acidity.

What is the likely impact of ocean acidification on marine biodiversity?

It decreases biodiversity by harming coral reefs.

It increases biodiversity by creating new habitats.

It has no effect on marine biodiversity.

It increases biodiversity by reducing water temperature.

What role does altitude play in species distribution?

Different altitudes create varied habitats affecting species distribution.

It has no effect on species distribution.

Higher altitudes support more biodiversity.

Lower altitudes support more biodiversity.

How can habitat fragmentation negatively impact biodiversity?

By isolating populations and reducing genetic diversity.

By increasing genetic variation.

By creating more habitats for species.

By increasing the number of species in a habitat.

Which of the following is true about bioaccumulation and its impact on trophic levels?

Organisms at higher trophic levels are more affected.

It affects all trophic levels equally.

Organisms at lower trophic levels are more affected.

How might changes in air quality affect biodiversity?

Poor air quality can decrease biodiversity.

They have no effect on biodiversity.

Improved air quality can decrease biodiversity.

Poor air quality can increase biodiversity.

What is the effect of climate trends on species distribution?

They cause shifts in species distribution.

They stabilize species distribution.

They have no impact on species distribution.

They reduce species distribution.

Which of the following best describes ecosystem biodiversity?

The variety of species within a specific habitat.

The genetic variation within a population.

What is meant by ecosystem resilience?

The ability of an ecosystem to return to equilibrium after a disturbance

The ability of an ecosystem to avoid ecological disturbances

The ability of an ecosystem to adapt to new species

The ability of an ecosystem to increase in size

How does biodiversity influence the health of an ecosystem?

More biodiversity leads to a healthier and more stable ecosystem

More biodiversity makes an ecosystem less stable

Less biodiversity prevents ecological disturbances

Less biodiversity increases the ecosystem's resilience

What happens during primary succession?

Development of an ecosystem on previously uninhabited land

Ecosystem recovery after a storm

Ecosystem changes due to human activity

Return of species to their original habitat

Which ecological disturbance could lead to secondary succession?

Volcanic eruption creating new land

Which statement about secondary succession is true?

It only occurs in aquatic environments

What distinguishes primary succession from secondary succession?

Primary succession is slower than secondary succession

Primary succession occurs in water, secondary on land

What role do biotic factors play in an ecosystem?

They interact with abiotic factors to influence ecosystem health

They determine the amount of sunlight

They include non-living elements

Why is ecosystem resilience important for biodiversity?

It allows ecosystems to recover and maintain biodiversity after disturbances

It ensures ecosystems remain unchanged

It prevents the introduction of new species

It eliminates competition among species

Which combination of abiotic factors would most likely support a dense forest biome?

High precipitation, moderate temperatures, and rich soil nutrients

Low precipitation, high temperatures, and sandy soil.

High altitude, low temperatures, and rocky soil

Constant direct sunlight, low precipitation, and saline soil

Biosphere Test

Quiz

•

Science

•

9th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-LS2-4, MS-LS2-5, MS-LS2-3

+17

Standards-aligned

Trista FuquayVarinaHS

Used 7+ times

FREE Resource

Student preview

66 questions

Show all answers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are abiotic factors in an ecosystem?

Animals and plants

Temperature and sunlight

Producers and consumers

Decomposers and predators

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which biome is characterized by high temperatures and heavy rainfall throughout the year?

Tundra

Desert

Tropical rainforest

Taiga

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following best describes a food chain?

A network of interconnected food webs

A linear sequence showing energy flow between organisms

A diagram showing biodiversity in a biome

A map of abiotic factors in an ecosystem

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What percentage of energy is typically transferred from one trophic level to the next in an ecosystem?

10%

50%

100%

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does biodiversity contribute to ecosystem stability?

By reducing the number of species

By increasing competition among species

By enabling ecosystems to recover from disturbances

By causing the extinction of weaker species

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an example of a biotic factor in a coral reef ecosystem?

Water temperature

Salt concentration

Coral polyps

Ocean currents

Tags

NGSS.MS-LS2-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which biome would you likely find permafrost?

Desert

Savanna

Tundra

Deciduous forest

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Biosphere Test

66 questions

What are abiotic factors in an ecosystem?

Which biome is characterized by high temperatures and heavy rainfall throughout the year?

Which of the following best describes a food chain?

What percentage of energy is typically transferred from one trophic level to the next in an ecosystem?

How does biodiversity contribute to ecosystem stability?

Which of the following is an example of a biotic factor in a coral reef ecosystem?

In which biome would you likely find permafrost?

What role do decomposers play in an ecosystem?

Which biome is characterized by low precipitation and extreme temperature variations?

Which of the following factors is most likely to influence the type of vegetation found in a biome?

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