Ecology - Test Test Answers

Which would be the most accurate title for this picture?

Which explanation is best supported by the numbers in the chart?

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?

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

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

The Serengeti plains are part of the African savanna ecosystem and are home to a variety of different species of plants and animals. The Serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. Which type of limiting factors does the seasonal drought in the Serengeti plains affect?

Which statement best compares consumers and decomposers?

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?

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?

Which determines carrying capacity?

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?

Ground squirrels are found in many areas of the United States. They live in underground burrows and are often attacked by birds of prey, coyotes, and bobcats. Which of the following is a limiting factor for a ground squirrel population?

Which of these is an autotroph?

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

A trout population grew from 4 in 1992 to 16 in 1993 and then to 64 in 1994. If it continued to grow exponentially, approximately how many trout were there in 1995?

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

A mountain lion population recently experienced a drop in population size. Which of the following would best describe the limiting factor that is involved?

Interactions between organisms and their environment impact the organism’s overall population. The jaguar Panthera onca is the largest cat in North America. It is found in areas across the Southwest, including Arizona, New Mexico, and Texas. It is a carnivore that has powerful jaws and sharp teeth and preys on fish, turtles, and many smaller mammals. Which shows the relationship between the jaguar and turtles?

Which best describes what is occurring in this population of squirrels?

Which would have to happen to keep the population growth of cheetahs in 2013 the same the previous years?

Which of these facts about wild boars is best supported by the evidence provided?