Topic Test Answers

Which of the following attributes is characteristic of savannas but not of grasslands?a.burrowing animalsb.droughts and firesc.shrubs and isolated treesd.a large number of grazing animals

Which of the following changes in deciduous forests occurs in the winter?a.Trees regain their leaves.b.Trees block the flow of water and nutrients to their leaves.c.The leaves of trees begin to lose their chlorophyll.d.Trees live off of stored nutrients.

Which of the following did not allow researchers to further explore below the ocean’s surface?a.ROV’sb.Alvinc.Palomaresd.Bathysphere

Which of the following is a characteristic differentiating tropical and temperate rainforests? a. the location b. the types of trees c. the average temperature d. all of the answers are correct Please select the best answer from the choices provided

Deciduous forests can only be found in North America.

The marine biome _______.a.is a large ecosystem, but not larger than some terrestrial ecosystemsb.is characterized by four different zonesc.has little species diversityd.covers a small portion of the Earth’s surface

Vines most successfully compete for sunlight in tropical rainforests by _______.a.climbing up into the canopyb.strangling the trees they grow onc.having broader leaves that absorb more lightd.having thick, woody stems

Which of the following plant adaptations aids savanna plants during droughts?a.spinesb.water storagec.growth patternsd.bitter taste

Which of the following adaptations enables deciduous trees to produce more food?a.thick barkb.stretching toward the sunc.leaf lossd.color change

Which of the following adaptations is typical of marine mammals?a.thick layer of blubberb.body covered in thick furc.webbed hands and feetd.breathing apparatus on the sides of the head

Researchers aboard the H.M.S. Challenger discovered over 4000 new species of marine life.

The least amount of air movement in tropical rainforests is found in (the) _______.a.top canopyb.second layer of the canopyc.third layer of the canopyd.none of the above

Having warm weather all year with a distinct winter and summer season where winter is a long, dry, and slightly cooler season with only 4 inches of rain on average, and summer is a very hot, humid, and wet season with 15 to 25 inches of rain, with monsoon rains beginning in May describes the _______ biome(s).a.rainforestb.savanna and grassland c.deciduous forestd.chaparral

The plentiful nature of resources in the tropical rainforest reduces competition for them.

The rainforest contains half of the Earth’s wildlife and at least two thirds of its plant species. It can hold great quantities of water and is very important to the planet’s water cycle. Rainforests remove vast amounts of CO2 from the atmosphere and replace it with oxygen. Which of the following statements best summarize the above information about rainforests?a.The majority of the planet’s oxygen is generated from the rainforest.b.Two-thirds of all plants originated from the rainforest.c.The rainforest is a major catalyst for the planet’s water cycle.d.The rainforest is important to life as a whole on the planet.

The greatest level of biodiversity in the tropical rainforest is found in the _______.a.top canopyb.second layer of the canopyc.third layer of the canopyd.the ground

Which of the following is a savanna? a. Veldts b. Plains c. Steppes d. Llanos Please select the best answer from the choices provided

Organisms that live in deciduous forests have developed unique adaptations that aid in their survival. Which adaptation would be seen in the duckbilled platypus? a. The duckbilled platypus reaches an adult length of 3 to 4 feet. b. The duckbilled platypus lives near forests. c. The duckbilled platypus gives birth to live young. d. Males have venom glands on a spur on their hind feet. Please select the best answer from the choices provided

The amount and type of precipitation in temperate rainforests is the same as tropical rainforests.

Unlike lakes, the ocean is separated into zones.