Topic Test Answers

Which of the following is the best explanation for why finches on one of the islands in the Galapagos have large beaks while finches on another island have small beaks?

Which of the following is not true about Darwin’s book On the Origin of Species?

Which of the following is not an example of an abiotic factor?

A recent study has shown an increase in the number of predators in an ecosystem. Which of the following is a possible cause for the growth?

Which of the following human activities most likely resulted in the growth of the North American deer population?

Less than 0.1% of the energy in a food chain generally makes it from the sun to quaternary consumers.

The ecosystem is the lowest level of the biosphere hierarchy to include _______.

A portion of grass in a prairie ecosystem was destroyed by wildfire. What will most likely happen to the population of bison that feed on the grass?

Similarities between seemingly unrelated organisms can be explained by Darwin’s theory that organisms come from common ancestors.

For the following organisms, choose the correct order of increasing trophic level.

In general the warmest biomes in the world are found _______.

Which of the following is the biggest threat to the Monarch butterflies’ annual migration?

Scientists use specific levels of organization in order to analyze the biosphere. The Everglades are a large area of subtropical wetlands found in Florida. A variety of plants and animals can be found in the Everglades, including Florida panthers, cypress trees, herons, and alligators. Photo by National Park Service Which level of organization is not seen in the Everglades?

Too much logging in the Oyamel fir forests could lead to the eastern monarch butterfly going extinct because _______.

The biggest threats to Christmas Island crabs during their annual migration are _______.

It is advantageous for a predator to prey exclusively on a single prey species.

Organisms produce their own energy or provide energy for other organisms in a food chain. Many different organisms can be found in the Amazon rainforest in South America. Organisms in this biome include a variety of trees, plants, insects, fish, birds, reptiles, and mammals. The jaguar and anaconda are among the largest predators found in the Amazon. Photo by Trisha M. Shears Photo by US Fish and Wildlife Service Which trophic level do anacondas and jaguars fill in the Amazon rainforest?

What types of organisms will be affected by a decreased supply of water in an ecosystem?

Which of the following is not a part of Darwin’s theory of evolution?

Organisms that have a physical trait that makes it easier for them to access food supplies are unlikely to pass on that trait to their offspring.