Environment 3

sidobuba's version from 2016-05-29 16:25

Section 1

Question Answer
The wavelengths of solar energy that are absorbed by plants in photosynthesis are ________.within the visible spectrum
The trophic level of "producers" includes ________.any organism producing biomass directly from photosynthesis - the autotrophs.
Net primary productivity ________.the energy used by plants to make biomass after respiration
Nitrogen fixation and nitrification both take place in ________.soils
The greatest planetary pool of nitrogen is ________.atmosphere

Section 2

Question Answer
Aquifers are ________.porous rock formations that store groundwater
Consider the following processes: respiration, combustion, polymerization, nitrification, industrial fixation and photosynthesis. How many of these result in the release of oxygen into the atmosphere?1
When you burn a log in your fireplace you are converting ________.chemical to thermal (heat) energy
The greatest human impact on the carbon cycle has been through ________.combustion of fossil fuels
That all the energy of the universe remains constant, is conserved, neither created nor destroyed, but may change form is a statement of the ________.First law of thermodynamics

Section 3

Question Answer
The murkiness (turbidity) of the water was analyzed and found to have several major sources, including ________.erosion from the deforested hillsides, sediments produced from poorly treated wastewater discharge, and sediments produced from the increased plant biomass of the lake
A biodiversity survey of the lake revealed a striking decline in nearly all animal species and in rooted plant life, especially where streams discharged into the lake. The immediate cause(s) of the decline most likely were ________.very low oxygen levels and lack of plants to support animal consumers
A task force composed of water quality chemists, environmental landscape experts, townspeople and corn growers meet and share information. They decide that they must focus on ________ in the initial efforts to restore the lake.reducing fertilizer inputs into the lake by exploring alternative farming techniques, increasing the efficiency of the wastewater plant and using aerators to increase oxygen levels in the areas where streams flow into the lake.

Section 4

Question Answer
Zebra mussels ________.are an invasive exotic species that clogs water intake pipes at factories, power plants, and wastewater treatment facilities
Individuals of a single species fighting over access to a limiting resource is one example of ________.intraspecific competition
Zooplankton populations in Lake Erie and the Hudson River have declined by up to 70% since the arrival of zebra mussels because ________.zebra mussels prey exclusively on zooplankton
By definition, parasites ________ their host.feed on and harm
Many moths, beetles and flies closely resemble bees and wasps but cannot sting. This is ________.mimicry

Section 5

Question Answer
________ capture solar energy and use photosynthesis to produce sugars.producers
Grazing animals such as deer are ________.primary consumers or herbivores
Zooplankton-eating fish are ________.secondary consumers
Which of the following is true about top predators?They are likely to be keystone species.
Secondary succession ________.occurs after a fire or flood

Section 6

Question Answer
Which has the most biodiversity?tropical rainforest