module 3 part 2

1. A pesticide is a product that kills

• a. insects and weeds only 

• b. insects or other animals that are considered to be pests

• c. ants or mosquitoes only 

• d. ticks and fleas but not mice

2. If pesticides get into a lake, which organism will show the highest level in its fat tissues?

• a. fish  

• b. microscopic animals 

• c. microscopic plants  

• d. great blue heron (fish eater)

3. Spraying of pesticides on crops ......

• a. affects only the sprayed crops 

• b. has no effect on the food chain

• c. is necessary if farmers are to grow crops 

• d. may result in pesticides ending up in rivers and lakes

4. Compared to DDT, organic phosphorus compounds are generally ....

• a. less persistent and less toxic 

• b. less persistent and more toxic

• c. more persistent and less toxic 

• d. more persistent and more toxic

5. A substance produced by an organism to influence the behavior of another member of the same species is a(n) ......

• a. agonist  

• b. inducer 

• c. marker  

• d. pheromone

6. The use of ladybugs to control insect pests is an example of ……

• a. biocidal control

• b. biological control 

• c. abiotic control  

• d. exploitation of insect pests

1. Farming that meets human needs without degrading the environment or depleting resources is called …..

• a. corporate farming  

• b. industrial farming 

• c. local farming  

• d. sustainable agriculture

2. Organic farming differs from conventional agriculture in that organic farmers use no .....

• a. animal manure  

• b. crop rotation 

• c. legumes  

• d. synthetic pesticides

3. Comparing modern agriculture to organic farming, which is NOT true?

• a. Modern farming uses far less human energy and much more mechanical energy.

• b. Each modern farm worker provides food for about 80 people, many more than organic farmers do.

• c. Organic farmers use far more petroleum-based energy overall than farmers who use commercially available fertilizers and herbicides.

• d. Organic farmers use fewer inorganic fertilizers and more carbon-based fertilizers.