Organisms and the Environment — Test Answers

Which would be the most accurate title for this picture?

Both photosynthesis and cellular respiration are part of the carbon cycle. Which statement best compares these two processes?

Humans affect Earth in many ways. The use of fossil fuels, the clear-cutting of forests, and controlled burns can affect the carbon cycle. Which process can help counteract these human interactions?

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

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

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

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

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?

What kind of display would be the best way to represent the data? Type of species Critically endangered open paren percent close paren Endangered or vulnerable open paren percent close paren Plants 13 70 Invertebrates 0 35 Freshwater fish 9 37 Amphibians 7 30 Reptiles 5 28 Birds 0 12 Mammals 2 21

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?

A new highly nutritious crop is going to be planted in an area where it has never been planted before. Which is the most likely outcome of such an event?

Which statement describes both a positive impact and a negative impact associated with the effects of nitrogen-enhanced fertilizers?

Freshwater can be renewed, but environmentalists consider it nonrenewable. Why is there a contradiction in classification?

Which statement describes the relationship between plants, animals, and the carbon cycle?

What would most likely happen if there were no condensation stage in the water cycle?

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?

Which of these is an autotroph?

Legumes, a type of plant, require Rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen. Rhizobia use the legumes for food. What would most likely happen to the legume population if Rhizobia suddenly became extinct?

Which statement best compares consumers and decomposers?

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?