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which of the following is best supported by the data in the graph

after volcanic eruption , pioneer species colonized the area and the ecosystem began to undergo succession

the largest area of old growth forest in the united states is located in

Alaska

Region where the protective ozone layer is located

Stratosphere

why do introduced species often become pests

They displace native species

region that contains the majority of molecules in the atmosphere

Troposphere

which if the following is a commercially used method for harvesting trees and is most likely to lead to a fragmented landscape with serious impacts on biodiversity

a clear cutting

which of the following best identifies the authors claims

aardvarks are a keystone species and their decline could have a tropic cascade effect on the ecosystem

Macronutrients

chemicals organisms need in large numbers to live grow and reproduce

which of the following identifies the two factors thought to be the most harmful to biodiversity

destruction of habitat and invasion by a nonnative species

biodiversity non use value

existence, aesthetics, future generations

region with the lowest atmospheric pressure

exosphere

biodiversity use value

for the usefulness in the terms of economic and environmental services

which if the following statements about genetic diversity is true

genetic resistance to pets and diseases can be increased by crossing a crop plant with ancestral varieties

which of the following loads to a decrease in biodiversity

introduction of an exotic species

A state highway was constructed over wetlands. The state obtained a permit to fill the existing wetlands in accordance with the provisions of the Clean Water Act of 1972, and agreed to create another wetland . This trade-off approach to addressing an environmental issue is known as

mitigation

which of the following statements best explains the changes in size and composition of the population of finches after the drought

the total number of finches in the population decreased, and the larger beaked finches were more successful in the dry environment

Micronutrients

these are needed in small or even trace amounts

region largely responsible for the weather experienced in earths surface

troposphere


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