Lab: Interdependence of Organisms — Unit test Answers

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

A grass starts with 30,000 kJ of energy. How much energy would a cheetah acquire after it ate a zebra that consumed the grass?

What would happen to the size of the carnivore population if the herbivore population increased?

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

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

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?

What is the difference between food chains and food webs?

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 organism obtains its energy exclusively from dead or decaying matter?

Review the chart, which shows the population sizes of three African animals in 1990 and in 2000. Population Estimates of Animals in Africa in 1990 and in 2000 19902000Lions100,00047,000Cheetahs25,0007,500Zebras750,000450,000Which explanation is best supported by the numbers in the chart?

The map shows the distribution of wild boars in the United States (shaded area). Which of these facts about wild boars is best supported by the evidence provided?

Which is a consequence of global warming?

Which is a renewable resource?

Which is the primary consumer in this food chain?

Squirrels and chipmunks compete for the same food source. What is most likely to happen to the degree of competition between these two species if their food became scarce?

The pine borer beetle is a parasite to the pine tree. What would most likely happen to the pine tree population if the beetle population decreased?

What might happen to the organisms in the food web below if the number of phytoplankton and vegetation drastically decreased?

What are sustainable use practices?

Which organism is an example of a producer?

As human travel increases, the number of introduced species likely