Biomes

group of ecosystems that share similar abiotic and biotic conditions

describes average conditions, like temperature and precipitation; over long periods

the day-to-day conditions in Earth's atmosphere, such as "hot and humid"

climate diagrams that describe conditions in a biome

organic matter, or biomass, that remains after cellular respiration

tall tress form a dense covering

top layer of the rainforest canopy, made up of the tallest trees

shorter trees and plants

plants that grow on other plants

trees that lose their leaves and stop photosynthesis

a deep, sleeplike period of dormancy

trees that produce seed-bearing cones and keep their needles

deep, sleeplike state that an animal enters for the winter

underground soil that's frozen year-round

measures the amount of salts dissolved in water

uppermost layer where there is enough sunlight for photosynthesis

the layer below the photic zone where no sunlight penetrates and photosynthesis cannot occur

bottom of the body of water; could be sunlit or pitch black

shallow, near-shore portion of the photic zone

farther from shore; no rooted plants

land that's flooded at least part of the year

areas nearest a river's course

bodies of water, partly enclosed by land, that occur where fresh water from land drainage melts the water of an ocean or inland sea

vertical flow of cold, nutrient-rich water toward the surface