Selective breeding has resulted in plants that are resistant to pests and produce a higher yield of fruits and vegetables. Which of these is the most likely disadvantage that can result from this process?
A: decreased genetic diversity

What is the role of decomposers in a food chain?
A: They break down dead organic matter.

The hormone insulin is secreted by the pancreas. Which activity is most likely to trigger an increase in the levels of insulin circulating in the blood?
A: eating

Which pair of items will repel each other?
A:
a negatively-charged plastic strip and a negatively-charged piece of cloth