Human Impact on the Environment — Unit test Answers

Wolves are predators of deer. What is most likely to happen to the deer population if the wolf population increased?

Termites are insects that live in colonies. In a colony, the king and a queen are responsible for reproduction. Workers spend most of their time caring for the other termites and building the nest. Soldiers protect the nest from attacks.The organization of the termite colony is an example of which benefit of social behavior?

The image shows a group of fish.

How would an increase in nest sites affect a population of pigeons?

Which of these is an autotroph?

A hunter illegally kills a wolf in Yellowstone National Park and attempts to bring the wolf's skull back to Florida. Which law is the hunter violating?

During the nitrogen cycle, through which structure are nitrogen compounds first absorbed into the plant?

White perch is a fish that is native to Atlantic coastal regions and is invasive to the Great Lakes. It feeds on native species and is thought to be the cause of the decline of the Great Lakes walleye fish populations. What was most likely its mode of introduction?

Rosa drew a flow chart of the carbon cycle.

Which best describes how an organism’s niche is determined?

Rainforests around the world are being cleared at an alarming rate to make room for new communities, agriculture, mining, and roads, and to provide lumber for construction and furniture. How might the destruction of rainforests affect the balance of gases in Earth's atmosphere?

Which sustainable practice is paired correctly with its impact on the environment?

An ecosystem has experienced a flood. Which type of plants would you expect to see growing first after the flood?

A group of sheep run in random directions to confuse a single predator. This is an example of which social behavior?

Some consumers, like lions, do not eat plants or any other producers. They only eat other animals.How do lions obtain the carbon they need?

The diagram illustrates the water cycle.

If the herbivore population in an ecosystem increased, what would most likely happen to the size of the carnivore population?

The burrowing owl is found in dry, open areas such as grasslands, prairies, savannas, deserts, farmlands, golf courses, and urban areas throughout most of western United States and Florida, Central America, and most of South America. It makes its home in burrows of other animals and primarily eats insects and small rodents. As humans build more cities, nearby burrowing owl habitats change due to destruction of burrows and loss of prey. Which is the least likely outcome of the habitat changes that are described?

Which statement best compares consumers and decomposers?

Which human activity is correctly paired with the greenhouse gas that it increases?