The corn crop in an area is prone to infestation by larvae from moths that feed on the cornstalks and ears of corn. the techniques used by two farmers to protect the corn crop are described below.
technique a: sprayed his corn crop with an insecticide. the insecticide is known to kill all honeybee, butterfly, and moth larvae.
technique b: used a genetically modified variety of corn. the plant produces an insecticide which selectively kills only the moth larvae as it feeds on the corn.
which technique is likely to have less of an impact on the environment?
technique b because it may humans who consume corn to fight bacteria
technique a because it kills a broader variety of insects to protect the corn
technique b because it preserves the harmless insects and targets only the moth larvae
technique a because insecticide use is better for preserving the environment
Answers: 3
Biology, 22.06.2019 02:50, alannalizettep8trnj
How does upwelling affect coastal fisheries? upwelling damages nutrient supplies at coastal fisheries as the warm, nutrient-rich surface water is replaced by nutrient-poor, cold water. upwelling damages nutrient supplies at coastal fisheries as the cold, nutrient-rich surface water is replaced by nutrient-poor, warm water. upwelling improves the nutrient supply at coastal fisheries as the warm, nutrient-rich surface water replaces the nutrient-poor, cold water. upwelling improves the nutrient supply at coastal fisheries as cold, nutrient-rich water replaces the warm, nutrient-poor surface water.
Answers: 3
Biology, 22.06.2019 06:00, caleelwittmann31
Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?
Answers: 1
Biology, 22.06.2019 09:30, carolinerosewillis
One of the reasons that stars are so large is because
Answers: 2
Biology, 22.06.2019 11:00, jimissac68
Which statement correctly describes other ways in which nebulae and stars are different? a. a star always has a higher density than a nebula. b. stars can form inside a nebula but a nebula can never be produced by any star. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star. reset submit
Answers: 3
The corn crop in an area is prone to infestation by larvae from moths that feed on the cornstalks an...
Mathematics, 16.06.2020 16:57
Mathematics, 16.06.2020 16:57
Mathematics, 16.06.2020 16:57