Biomes and Aquatic Ecosystems

Which term describes a large community of plants and animals that occupies a distinct region?

• Canopy

• Biome

• Humus

• Estuary

What is the term for the upper layer of a forest, formed by the crowns of trees?

• Understory

• Canopy

• Humus

• Taiga

In a forest ecosystem, which term describes the layer of vegetation that grows in the shade of the canopy above?

• Canopy

• Understory

• Humus

• Estuary

What is the organic component of soil, formed by the decomposition of leaves and other plant material by soil microorganisms?

• Canopy

• Understory

• Humus

• Plankton

Tags

NGSS.MS-LS2-3

Which biome is characterized by cold climates, evergreen forests, and is found just below the Arctic Circle?

• Taiga

• Wetland

• Estuary

• Canopy

What term describes the permanently frozen layer of soil found in the polar regions?

• Canopy

• Humus

• Permafrost

• Understory

Which zone of a water body is well-lit and supports a high density of photosynthetic organisms?

• Photic Zone

• Aphotic Zone

• Wetland

• Estuary

Tags

NGSS.MS-LS1-6

In which zone of a water body does sunlight not penetrate, making photosynthesis impossible?

• Photic Zone

• Aphotic Zone

• Wetland

• Estuary

Tags

NGSS.MS-LS1-6

What term is used to describe small and often microscopic organisms that drift or float in the sea or freshwater, including both phytoplankton and zooplankton?

• Canopy

• Plankton

• Humus

• Understory

Which term refers to land areas that are saturated with water, either permanently or seasonally, and include marshes, swamps, and bogs?

• Taiga

• Wetland

• Estuary

• Canopy

Tags

NGSS.MS-LS2-5