Topic Test (96%)

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's b. Alvin c. Palomares d. Bathysphere

Which of the following adaptations enables deciduous trees to produce more food? a. thick bark b. stretching toward the sun c. leaf loss d. color change

The marine biome _______. a. is a large ecosystem, but not larger than some terrestrial ecosystems b. is characterized by four different zones c. has little species diversity d. covers a small portion of the Earth's surface

Vines most successfully compete for sunlight in tropical rainforests by _______. a. climbing up into the canopy b. strangling the trees they grow on c. having broader leaves that absorb more light d. having thick, woody stems

Which of the following plant adaptations aids savanna plants during droughts? a. spines b. water storage c. growth patterns d. bitter taste

Which of the following attributes is characteristic of savannas but not of grasslands? a. burrowing animals b. droughts and fires c. shrubs and isolated trees d. a large number of grazing animals

Deciduous forests can only be found in North America.

Which of the following adaptations is typical of marine mammals? a. thick layer of blubber b. body covered in thick fur c. webbed hands and feet d. breathing apparatus on the sides of the head

Which of the following is the best description of the cane toad's introduction to Australia? a. It was a successful biological control mechanism for cane beetles. b. It was a failed biological control mechanism for cane beetles. c. It was a successful method for reducing freshwater crocodile populations. d. It was a failed attempt to eradicate South American fire ants.

Deciduous trees lose their leaves each year.

Why is it necessary to eliminate absolutely all invasive fire ant colonies to eradicate the invasive population? a. Every colony has a major impact on native flora and fauna. b. Because the last colony found is the one housing the invasion's queen. c. Even a single remaining ant can rebuild the invasive species' population d. Fire ants spread by winged members and by hitching rides so a single colony can cause infestation.

This climate is considered tropical wet with temperatures between 68°F to 93°F and an annual precipitation of 50-260 inches. There is often a short season of less rain, or sometimes in areas with monsoon seasons, a short period of no rain. The soil contains very little nutrients because the trees quickly absorb all the nutrition out of the ground. A great amount of sunlight reaches the upper canopies, but very little sunlight filters down to the understory and forest floor. These are all characteristics of the _______ biome. a. deciduous forest b. alpine forest c. rainforest d. savanna

Which of the following organisms lives near the surface of aquatic biomes because it needs sunlight to survive? a. phytoplankton b. zooplankton c. sturgeon d. manatee

Grasslands never have trees.

Organisms that live in the savanna and grassland biomes have developed unique adaptations that aid in their survival. Which of the following organisms is most likely to be found in a grassland? a. a bird that nests in trees b. an animal that burrows c. a large predatory cat d. an animal not adapted to cold temperatures

Which of the following are most responsible for the success of the cane toad as an invasive species in Australia? a. venom glands and varied diet b. varied diet and prolific reproduction c. prolific reproduction and strong hind legs d. strong hind legs and venom glands

Limnetic, profundal, littoral, and benthic have what in common? a. They refer to the upper-level zones found in salt- and freshwater ecosystems. b. They are all zones found in freshwater systems. c. They refer to the lower-level zones found in salt- and freshwater ecosystems. d. They are all zones found in saltwater systems.

How does a savanna differ from a grassland? a. Savannas have a large number of grazing animals, while grasslands do not. b. Savannas have shrubs and isolated trees, while grasslands contain grasses, flowers, and herbs. c. Grasslands have burrowing animals, while savannas do not. d. Savannas are regulated by fires, while grasslands are not.

Grasslands are _______. a. characterized by heavy rainfall year round b. characterized by warm temperatures year round c. found in the interior of continents d. located only in North America

Which of the following about the copperhead snake is true? a. The copperhead snake is one of six venomous species in North America. b. Copperhead snakes average 4.5 feet in length. c. Copperhead snakes are not camouflaged. d. Copperhead snakes detect heat given off by potential prey.

Fires are important to savanna ecosystems, but not to grassland ecosystems.

Which of the following is not one of the five zones of the deciduous forest? a. shrub b. animal c. herb d. tree stratum

Which of the following is characteristic of grasslands, but not savannas? a. wide temperature range b. two seasons c. droughts and fires d. wet and dry seasons