Question

activity a (continued from previous page)

1. experiment: for each of the remaining resistance types, try to maximize corn yield by adjusting the amount of herbicide and insecticide used. then, fill out the table below.

resistance type	herbicide amount	insecticide amount	yield
caterpillars
caterpillars and herbicide

1. explore: when using caterpillar - resistant corn, does it help to add insecticide?

explain.

Explanation:

Step1: Conduct experiments

For each resistance - type, vary the amounts of herbicide and insecticide to find the maximum corn yield and fill in the table.

Step2: Analyze the effect of insecticide

When using caterpillar - resistant corn, consider if adding insecticide has a positive impact on yield. If there are other pests that insecticide can target, it may help. If caterpillars are the only significant insect threat and the corn is resistant to them, adding insecticide may not be necessary.

Answer:

1. The table should be filled with values obtained from the experiments where different amounts of herbicide and insecticide are tested for each resistance type to get the maximum yield.
2. It may or may not help. If there are other insect pests present, adding insecticide can help control them and potentially increase yield. If caterpillars are the only relevant insect threat and the corn is resistant to them, adding insecticide may not be beneficial as it can be wasteful and may have negative environmental impacts.