True or false: A single biome can contain many distinct ecosystems.
10 Biomes and Global Ecology Online Quiz Questions
Use this free practice quiz with 20 questions to review 10 Biomes and Global Ecology, test your knowledge, and prepare for your next test or exam.
A region has moderate rainfall and distinct seasons, and many of its trees lose their leaves in winter. Which biome best fits these conditions?
- A
Boreal forest
- B
Temperate forest
- C
Tropical wet forest
- D
Arctic tundra
What term describes the rate at which producers such as plants and algae build biomass?
True or false: In many ocean areas, photosynthesis is generally not possible below the depth reached by sufficient sunlight.
- A
True
- B
False
Which biome is warm, has seasonal rainfall and a prolonged dry season, and is dominated by grasses with scattered trees?
- A
Temperate grassland
- B
Chaparral
- C
Savanna
- D
Subtropical desert
Select all the factors identified as influencing aquatic communities.
- A
Salinity
- B
Light
- C
Soil type
- D
Temperature
- E
Water movement
- F
Dissolved nutrients
In many ocean areas, about how deep does enough light for photosynthesis reach? Enter the approximate depth in metres.
Which factors does the material identify as affecting sunlight or influencing local temperature and rainfall on land? Select all correct choices.
- A
Latitude
- B
Elevation
- C
Ocean currents
- D
Prevailing winds
- E
Mountains
- F
The presence of a coral reef
A deep-sea community lies below the depth where photosynthesis is generally possible. Which explanation best describes how it can obtain energy?
- A
They rely entirely on plants growing on the seafloor.
- B
They depend on nutrients delivered only by river water.
- C
They use food drifting down from above or, near some vents, chemical energy used by microbes.
- D
They receive enough sunlight for widespread photosynthesis.
Explain how temperature and precipitation can shape both primary productivity and the distribution of organisms in a terrestrial region.
Which trait would best help an organism live in a river or stream?
- A
Organisms adapted to prolonged drought
- B
Organisms able to withstand flowing water
- C
Organisms that require permanent darkness
- D
Organisms adapted to highly variable salinity
Two distant regions have similar long-term temperature and precipitation patterns. Is it necessarily true that their communities will contain identical species?
- A
True
- B
False
A mountain range receives moist prevailing winds. Which explanation best accounts for drier conditions on the far side of the range?
- A
The side facing the prevailing wind is drier because mountains block all rainfall.
- B
The side beyond the mountains may be drier because rising air loses moisture as rain.
- C
Both sides must have equal rainfall because they are at the same elevation.
- D
The side beyond the mountains is wetter because descending air releases more moisture.
A warm region has a prolonged dry season, seasonal rainfall, grasses, and scattered trees. Which biome best fits these conditions?
- A
Tropical wet forest, because it is rainy most of the year and has dense, layered evergreen vegetation.
- B
Temperate grassland, because grasses dominate and rainfall is moderate.
- C
Savanna, because seasonal rainfall and a prolonged dry season support grasses and scattered trees.
- D
Chaparral, because drought-tolerant shrubs are common in hot, dry summers.
A very cold region has low precipitation and a short growing season. Permafrost limits how deeply plant roots can grow. What biome is this?
Why can a deep-sea community depend on food drifting down from above, while a surface-water community can support phytoplankton?
- A
Photosynthetic food webs are generally supported near the surface, while deep-sea communities rely on food drifting down or, in some places, chemical energy.
- B
Photosynthesis is most productive in deep water because there is less competition for light.
- C
Deep-sea communities cannot persist because no food or energy reaches them.
- D
Surface waters lack photosynthesis because currents carry all light below the ocean's upper layers.
What aquatic environment forms where freshwater mixes with seawater and creates shallow, productive habitat with fluctuating salinity?
Which trait would most directly help an organism live in a river or stream rather than a still pond?
- A
Organisms that require stable, unmoving water.
- B
Organisms that need seawater with high salinity.
- C
Organisms that rely on seasonal exposure to air at low tide.
- D
Organisms able to withstand flowing water.
A drought-tolerant shrub community grows where winters are mild and wet, but the hot, dry bring a greater risk of fire. Which season completes the description?
A temperate grassland may contain along streams, even though the surrounding landscape is dry enough to discourage widespread tree growth.