Ch 3 Biomes Test Review

Which defines a biological community?

• all organisms living within a biome
• all interacting populations in an area
• many interacting ecosystems in an area
• the living and nonliving things in a region

A savanna is characterized by ____________.

• thick forest areas
• grasses with trees intermixed
• frozen soil layer
• sand and rocky terrain

Most of the Earth's freshwater is found in _________.

• glaciers
• lakes
• rivers
• underground

Contains the greatest variety of organisms

• boreal forest
• temperate forest
• tropical rain forest

Has deciduous trees and four distinct seasons.

• boreal forest
• temperate forest
• tropical rain forest

Has mostly coniferous trees

• boreal forest
• temperate forest
• tropical rain forest

Ocean region up to about 200 m deep.

• abyssal zone
• intertidal zone
• photic zone

Deepest ocean region

• abyssal zone
• intertidal zone
• photic zone

Ocean region which includes habitats exposed to air

• abyssal zone
• intertidal zone
• photic zone

Primary succession starts with ________

• a woodland area growing from a grassland
• lichen growing on cooled lava
• new plant species growing in a flooded area
• trees sprouting after a forest fire