Unit 10 - Ecosystems Test Corrections

Turtles look for quiet, dark beach areas on which to nest. Tourists on the beaches may bother the turtles. Also, the lights from hotels and businesses discourage females from nesting at night. If a female doesn't find a safe place to nest, she may lay her eggs in an unprotected area or in the ocean.  In these cases, many of the hatchlings will not survive. 

What other factor may prevent the turtles from finding safe places to nest? 

Which statement correctly identifies two of the materials based on the classification of properties in the table?

Below is an image of a mother bird feeding her chicks. Facts about bird activities are shown in the image.

Which of the facts are about how birds interact with living parts of their environment?

Choose TWO correct answers.

Students create a drawing of organisms in a garden. In their drawing, a bird eats a caterpillar. Another caterpillar is eating the leaves on a parsley plant. Mushrooms grow in the shadow of the parsley.

Complete the table to show the role each organism has in the food web, based on the students' drawing.

Choose the correct answer to each box.

A desert food web is shown.

How many carnivores are represented in the desert food web?

What do the lightbulb and the bell do when the switch is left open?

Which statement best explains why the observed fish appears to be closer to the surface than the actual fish?

The chart lists plants and animals interacting with parts of an environment.

1. A hummingbird dips its beak inside a flower.

2. A lizard burrows into the sand to stay cool.

3. A fish absorbs oxygen through its gills.

4. A cactus wren eats seeds from a cactus fruit.

5. A sea star clings to a rock in a tidal pool.

6. A bear scratches its back against a tree.

Which statements describe an animal interacting with a living part of the environment?

What processes will happen when the Sun interacts with the ocean in the water cycle?

Select two correct answers.

Scientists have uncovered palm plant fossils in Alaska, the northern-most state of the United States. Modern-day palm plants grow in tropical climates. A picture of a palm fossil that measures almost one meter across is shown. 

This discovery suggests to scientists that this area in Alaska one was -- 

Water meters are devices that can track the amount of water used. Data shows that families that use water meters use less water.

What environmental impact does using water meters have?

Which pair of activities are examples of bumblebees interacting with biotic parts in their environment?

The picture below shows a forest ten years after a fire.

What kind of animals will most likely NOT do well in this young forest that is rebuilding 10 years after a fire?

Heavy rains flooded the area in the picture above. How might the floods affect the organisms that live there?