APES unit 8

all of the following are hazardus execpt

food scraps

a local group had to sample in a differnt time frame how might this affect results

water sampled later in the day might be warmer having lower oxygen levels

All of the following are used to deal with the side effects of euthophication except

adding nitrates

Eutrophication results in the death of trout and other fish as a result of

asphyxiation from lack of oxygen

which of the following human health issues is linked to exposure to polluntant released during the incineration of plastic waste

asthma

Some toxic compounds are ingested and retained in the tissues. These pollutants pose special risks to humans and other organisms high on the food chain because of which process?

biomagnificatio

describes the action of an endocrine disruptor

blocks the receptor protien binding site of a hormone

effects the intestines and spread through contamination of water and food

cholera

route for mercury entering the oceanic food webs

coal burning, deposition, oceam, plankton, fish

which of thr following federal laws specifically deals with the cleanup of abandoned hazordus waste sites

comprhensive environmental rsponsibility compensation and liability act

which statements about ozone is true

contact with ozonce can be injurus, ozone absorbs some wavelength and ultraviolet

factors that increase the spread of infectous disese except

exposure to nuerotoxins

describes a supporting ecological service provided by wetlands

habitat for wide variety of organisms

west nile virus is acquired by

infected mosquitoes

which is the primary method of waste disposal

landfilling

which describes why macroinvertebrate sampling can be used to asess the overall health of the stream

macroinvertebrates live inn an aquatic ecosyems for long enough to show the cronic effects of polluntants

poses a risk to humans who eat lots of fish

mercury

less LD50

more toxic

which is the greatest component by weight of municapal solid waste

paper

waste from which of the following is a nonprofit source pollution

runoff from agriculture

Many synthetic chemicals, such as PCBs, act as estrogen mimics. In an ecosystem, these persistent chemicals would have the greatest effect on which of the following?

secondary consumers

A laboratory study using rats showed a steady increase iin physical effects as the concentration of a toxic substance in their food. this suggests

the dose responsive relationship is linear