The release of water vapor to the atmosphere by plants is called ________
A) degassing B) evaporation C) infiltration D) transpiration
D
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What is the Competitive Exclusion Principle of Ecology?
A. The theory that predators will feed on other species in the same environment B. The theory that prey species must always outnumber the predator species C. The theory that two species are unable to occupy the same ecological niche D. The theory that mandates the presence of commensal species within a habitat
Homeowners living in a heavily forested region surrounding a small 3-acre pond in Missouri decided to reduce air pollution in their neighborhood
In the fall, after the oak and maple leaves had fallen, the homeowners blew all of the dead leaves into the pond. About 8 months later, in July, they noticed a large number of dead fish in the pond. What is the most likely cause of the fish kill? A) The dead leaves released poisons that killed the fish B) The bacteria decomposing the leaves depleted the levels of oxygen C) Bacteria fed on the leaves and then the bacteria infected the fish D) Carbon dioxide from the decaying leaves reached toxic levels and killed the fish
35% of the energy in France is generated from this source
A) nuclear power B) coal C) natural gas D) wind E) solar
Ecosystems are connected by ________
A) the essential flow of water through the ecosystem B) individual species competing for space with other species in the ecosystem C) the movement of pollutants between ecosystems D) the flow of energy and matter through the ecosystem E) energy cycling and nutrient flow