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Ch.22 Sec.1

QuestionAnswer
1st equation dealing with photosynthesis 6CO2 + 6H20 + solar energy--> C6 H12 O6 + 6O2
2nd equation dealing with energy flow C6 H12 O6+ 6O2 --> 6CO2 + 6H20
DDT Pesticide once used to prevent mosquitoes from transmitting malaria to humans. It contaminated zoo plankton that contam. small fish that contam. large fish that spread to eagles. Banned in 1972, still in ecosystems. Other countries still use it.
chemosynthesis Some species of bacteria can produce carbohydrates from inorganic molecules. EX: Bactria found along hydrothermal vents in the ocean
gross primary productivity The rate at which producers in an ecosystem capture energy.
biomass Organic Material
net primary productivity measures the rate at which biomass accumulates.
trophic level Indicates the organisms position in the sequence of energy transfers.
food chain Single pathway of feeding relationships among organisms in an ecosystem that result in energy transfer.
food web Interrelated food chains in an ecosystem.
consumers organisms that get their energy from eating other organisms. EX: Animals
autotrophs(producers) EX:grass and trees
Herbivores eat only producers. EX" Cows, sheep, deer
Carnivores Consumers that eat only other consumers. EX: Wolves, bobcat, coyte
Omnivores Eat both plants and meat EX: humans, bears
Detritivores Eat dead organisms EX: Vultures, maggots
Decomposers Consumers that breakdown dead organisma in an ecosystems. (returns nutrients to soil, and water. and air.) EX: fungi and bacteria.
Created by: redpride1
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