You study two insect food chains, one with a parasitic wasp laying its eggs in an herbivorous caterpillar and the other with a praying mantis eating an herbivorous meadow grasshopper If a persistent insecticide were applied to the plants in these
systems, where would we expect to find the high concentrations due to biomagnification? A) The grasshopper and caterpillar
B) The praying mantis and caterpillar
C) The caterpillar and parasitic wasp
D) The praying mantis and parasitic wasp
Question 2
Which of the following best illustrates the sustainable use of a resource?
A) Coal mines in West Virginia remove the tops of mountains to extract large amounts of coal.
B) Fishing industries improve their methods and now remove more than 90 of the fish in a region.
C) Huge windmills in Texas are able to capture 50 of the wind energy in a specific region.
D) Corporations are converting their company automobiles from gasoline to cheaper natural gas.
Catbirds and robins reject objects shaped similarly to cowbird eggs no more frequently than objects
Diagram of the food chain
Mary Cassatt, Study for In the Loge.
As the world’s population continues to grow, demands on limited resources for food production
Commonly Used Food Additives
A cowbird with its foster parent. A female cowbird minimizes her cost of parental care by laying her