Apes Chapter 16

Front 1

Pest

Back 1

any organism that interferes with humans or their endeavors

Front 2

Second- generation pesticides

Back 2

synthetic organic chemicals

Front 3

What is an advantage of DDT compared to earlier pesticides?

Back 3

relatively non-toxic to humans

Front 4

A farmer sprays his crop with a synthetic chemical pesticide to control an insect infestation. The infestation subsides, and then a few weeks later, it becomes worse. What is this phenomenon?

Back 4

Secondary pest outbreak

Front 5

A pesticide similar to DDT was sprayed on a lake to control mosquitoes. After a period of time, where would the highest concentration of pesticide be?

Back 5

Osprey and hawks that ate the fish

Front 6

A non-persistent pesticide

Back 6

breaks down within a few days (or weeks) after application

Front 7

Produce that is grown without the aid of pesticides and other synthetic chemicals

Back 7

Organic

Front 8

High levels of DDT affected the reproduction of bald eagles and other birds of prey by

Back 8

interfering with the uptake and use of calcium in egg shells

Front 9

Why does the loss of effectiveness occur when a chemical pesticide is repeatedly used in the control of an insect?

Back 9

because insect populations become resistant by the process of "survival of the fittest"

Front 10

Genetic improvement of crops increases pest resistance by

Back 10

increasing naturally occurring chemical and physical defenses of the plant

Front 11

True or False: Broad spectrum pesticides kill a wide variety of different organisms

Back 11

True

Front 12

True or False: An example of genetic pest control is the release of sterile males into pest populations

Back 12

True

Front 13

True or False: The US continues to rely on the use of pesticides to control agricultural pests.

Back 13

True

Front 14

True or False: Experience shows that all pests can be controlled by using enough pesticide.

Back 14

False

Front 15

True or False: DDT is a selective biodegradable insecticide.

Back 15

False