Describe the use of biological control for battling pests
What will be an ideal response?
This strategy uses predators, pathogens, and parasitoids of crop pests rather than chemicals to control pest densities. An organism that eats a crop pest is released into a crop; it kills the crop pest, decreasing the density of the crop pest without chemicals. The fact that many biocontrol agents are functioning parts of the ecosystem's food web greatly reduces the chances of pests becoming resistant to a predator or disease vector. It goes without saying that biological control of this type precludes using chemical sprays at the same time.
You might also like to view...
If the females of a songbird species prefer to mate with more brightly colored males, and you know this trait is heritable, you would expect
A) sexual selection to occur. B) males to evolve to become more brightly colored. C) brightly colored males to survive better in the population. D) both A and B
Thornbush and scrub forests tend to be found:
a. on the subtropical margins of the rainforest. b. where seasonal drought precludes development of a true rainforest. c. where soils are especially poor in nutrients. d. all of these
A(n) ____ forms when a cold front overtakes a warm front
a. occluded front b. advection front c. stationary front d. polar front e. orographic front
If the Antarctic Ice Sheet melts, sea level would rise:
a. 10 to 20 meters b. 60 to 70 meters c. 90 to 100 meters d. more than 100 meters