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Sookdeo ES Ch.6
Biomes
Question | Answer |
---|---|
biome | group of ecosystems that share similar abiotic and biotic conditions |
climate | average conditions including precipitations and temperature over a long period of time |
weather | day to day conditions in Earth's atmosphere such as sunny, humid, cold, snowy |
climatography | a climate diagram used to describe conditions in a biome |
net primary production | organic matter or biomass that remains after cellular respiration |
canopy | tall trees forming a dense covering |
emergent layer | tallest trees making up the top layer of a rainforest |
undersory | shorter trees and plants in a rainforest |
epiphyte | plants that grow on other plants instead of soil |
deciduous | trees that lose their leaves and stop photosynthesis during part of the year |
estivation | animals that enter a deep sleeplike period of dormancy when conditions are dry |
coniferous | evergreen trees that produce seed- bearing cones |
hibernation | deep, sleeplike state that animals enter for most of the winter |
permafrost | cold climates where the underground soil remains frozen year-round |
salinity | amount of salt dissolved in water |
photic zone | uppermost aquatic layer where there is enough sunlight for photosynthesis |
aphotic zone | no sunlight penetrates and photosynthesis cannot occur |
benthic zone | the bottom of a body of water |
littoral zone | shallow near-shore portion of the photic zone |
limnetic zone | zone farthest from the shore where there are no rooted plants |
wetland | area of land that are flooded with water at least part of the year |
flood plain | area nearest a river's course that can be flooded periodically |
estuary | body of water partly enclosed by land where freshwater meets salt water |
upwelling | vertical flow of cold, nutrient-rich water towards the surface |