A desired outcome derived from an understanding of ecology would be

The survival of many plants and animals has been aided most by

An insecticide stays in the fat of animals and is transferred through food chains. Its concentration increases through the food chain. Which organism would have the most insecticide?

Which action that humans have taken in attempting to solve an ecological problem has had the most negative effect?

Today's lifestyles have led to increased demands for disposable products. The packaging of these products has caused problems with

Japanese beetles, a major insect pest in the US, do little damage in Japan because they

Some modern agricultural methods have created serious insect problems because these methods

The decline and extinction of many predatory animal species is most probably the result of

Gypsy moths were accidentally introduced into North America. The most probable reason these insects have become serious pests is that they

The number of individuals that can be supported in an area is called

Which of these resources is renewable?

The destruction or removal of species from their habitats is known as

Which of the following will lower the use of nonrenewable resources?

Which group contains greenhouse gases?

Plants help maintain atmosphere quality by

For every environmental problem, people must assess the costs and benefits. These are called

To reduce greenhouse gas emissions, humans should

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