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science ch11 vocab

science ch 11 vocab

aquaculture The farming of saltwater and freshwater organisms.
biodiversity The number of different species in an area.
biome A region with a certain climate and certain forms of vegetation.
canopy A leafy roof at the top of tall trees.
captive breeding The mating of animals in zoos or wildlife preserves.
clear-cutting The process of cutting down all the trees in an area at once.
coniferous tree Trees that produce their seeds in cones and have leaves shaped like needles.
coral reef A structure of calcite skeletons built up by coral animals in warm, shallow ocean water.
deciduous tree Trees that shed their leaves and grow new ones each year.
desert An arid region that on average receives less than 25 centimeters of rain a year.
endangered species Species in danger of becoming extinct in the near future.
estuary A coastal inlet or bay where fresh water from rivers mixes with salty ocean water.
extinction The disappearance of all members of a species from Earth
fishery An area of ocean with many valuable ocean organisms.
grassland An area that is populated mostly by grasses and other nonwoody plants.
habitat destruction The loss of a natural habitat.
intertidal zone An area that stretches from the highest high-tide line on land out to the point on the continental shelf exposed by the lowest low tide.
kelp forests Area of the ocean floor where large, brown algae called giant kelp grow.
keystone species A species that influences the survival of many other species in an ecosystem.
neritic zone The area of the ocean that extends from the low-tide line out to the edge of the continental shelf.
permafrost Permanently frozen soil found in the tundra climate region.
plankton Tiny algae and animals that float in water and are carried by waves and currents.
poaching The illegal killing or removal of wildlife from their habitats.
renewable resource A resource that is either always available or is naturally replaced in a relatively short time.
savanna Grasslands that are formed closer to the equator than prairies.
selective cutting The process of cutting down only some trees in a forest and leaving a mix of tree sizes and species behind.
sustainable yield An amount of a renewable resource such as trees that can be harvested regularly without reducing the future supply.
threatened species Species that could become endangered in the near future.
tundra A polar climate region, found across northern Alaska, Canada, and Russia, with short, cool summers and bitterly cold winters.
understory A second layer of shorter trees and vines formed below the canopy.
oceanography The study of oceans
marine biology Study of animals and plants and life in the ocean
food chain food web = what eats what
storm drain vent in gutter, goes underground, "freeway to ocean"
sharks endangered, killed for shark fin soup
No. Pacific Gyre floating island of plastic trash, larger than Texas
Whales marine mammals, many endangered
oil spill BP oil spill, fossil fuels - harms ecology
ecology study of environment and living things and interrelatedness
ichtyology study of fish
phytoplankton plant plankton, 70% of O2, base of food chain in ocean
zooplankton animal plankton, incl. jelly fish
Atlantic farmed salmon on Avoid list, high in Mercury
wild salmon better to eat, less toxins
Chiliean seabass over fished, high in Mercury
pH acid/base scale
acid pH 1-6
base pH 8-14
neutral pH 7
Created by: 527906154