1. Which of the following best summarizes the main point of the passage?
Species interdependence is a point of weakness for some plants, but is generally beneficial to insects involved in pollination.
Efforts to control the spruce budworm have had deleterious effects on the red-osier dogwood.
The used of pesticides may be endangering certain plant species dependent on insects for pollination.
The spraying of pesticides can reduce the fecundity of a plant species, but probably does not affect its overall population stability.
Plant species lacking key factors in their defenses against human environmental disruption will probably become extinct.
2. According to the author, a flowering plant species whose fecundity has declined due to pesticide spraying may not experience an overall population decline if the plant species can do which of the following?
Reproduce itself by means of shoots and runners.
Survive to the end of the growing season.
Survive in harsh climates.
Respond to the fecundity decline by producing more flowers.
Attract large insects as pollinators
3. The passage suggests that the lack of an observed decline in the fecundity of the creeping dogwood strengthens the researchers conclusions regarding pesticide use because the
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