Unit 6, Lesson 1 & 2 Quiz

Which population is found in a rain forest ecosystem? (pg. 270-275)

• antelopes

• monkeys

• sponges

• zebras

In a rain forest, why do fewer plants grow closer to the ground? (pg. 270-275)

• Earthworms eat the plants living on the ground.

• Broad leaves keep rain from reaching ground soil.

• Vines allow little space for ground plants to grow.

• Little light gets through the canopy to the forest floor.

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Which statement best describes this picture? (pg. 270-275)

• A population of elephants lives in the savanna.

• A community of elephants lives in the savanna.

• Elephants and grasses make up a savanna population.

• Trees and grasses are communities in a savanna ecosystem.

Earthworms live in soil. They eat rotting leaves and the remains of dead insects. Wastes from earthworms add nutrients to the soil. Earthworms are food for some birds. Which statement best describes the niche of an earthworm? (pg. 270-275)

• Earthworms live in soil.

• Soil contains nutrients for plants.

• Earthworms use remains of insects found in soil as food.

• Rotting plants and remains of insects can be found in soil.

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Which identifies the nonliving parts important in all ecosystems? (pg. 270-275)

• air, heat, rocks, water, and soil

• air, water, soil, sunlight, and temperature

• salt, temperature, sunlight, heat, and rocks

• water, soil, sunlight, rocks, and shade

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A developer is planning a new housing development and is interested in protecting crocodile habitats. The graph below shows which habitats crocodiles prefer.

The developer wants to build where fewest crocodile observations have occurred. Near which type of area is the developer most likely to place the new housing development?

• coves

• ponds

• creeks

• shoreline

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Hurricanes that strike land are considered natural disasters. Why are hurricanes also considered seasonal disasters? (pg. 282-291)

• Hurricanes can cause major damage.

• Hurricanes occur in areas all over the country.

• Hurricanes develop only during certain times of the year.

• Hurricanes strike only coastal regions and not areas that are far inland.

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Carrotwood is a fast-growing landscape tree. Today, this tree is found in many habitats, including dunes, coastal areas, freshwater marshes, and riverbanks. It crowds out native plants and competes for light and other resources. Which term best describes the carrotwood species? (pg. 282-291)

• native

• natural

• invasive

• predatory

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When an environment changes, differences between individuals can allow some plants and animals to survive while others die or move to new locations. Which statement best describes how this happens? (pg. 282-291)

• Environmental changes allow animals to survive, adapt, and vary.

• All animals survive when the environment changes, which leads to their variations and adaptations.

• Animals have variations that may allow them to adapt and survive when the environment changes.

• Animals have adaptations that allow them to survive environmental changes, which leads to variation.

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After large numbers of people moved to an area, several species of animals and plants became extinct. Which event most likely led to the extinction of so many species in a short amount of time? (pg. 282-291)

• natural disasters

• habitat destruction

• variations in the species

• the change in the climate

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