Unit 5 Pre-Assessment

The table shows lists the preferred diet of several types of birds. Based on this information, which two types of birds do not compete for food resources?

• Purple martin and yellow warbler

• Eastern bluebird and purple martin

• Lesser goldfinch and eastern bluebird

• American goldfinch and lesser goldfinch

An ecosystem has various food webs. One of these food webs is shown below. Which organism transfers the most energy within the food web?

• Grasshoppers because they support two chains in this food web.

• Foxes because they are predators in this web.

• Rabbits because they consume two producers in this web.

• Grasses because they are a producer in this web.

The nesting habits of four types of birds are described in the table. If all the dead branches and dying trees in a wooded area are removed, which bird's nesting habit would be most affected?

• Baltimore oriole

• Barn swallow

• Downy woodpecker

• Belted kingfisher

While looking at fossils on an eroded hillside, you discover fossil coral and fish in one layer. In a layer above you find the fossil imprint for a fern frond and some fossil moss. Assuming that rock had not been disturbed, which of the following is the most probable conclusion?

• A sea had been replaced by land ancient in ancient times.

• The area had been land until recent times.

• A fish had once lived there, but the area had become submerged by water.

• A saltwater sea had changed to a freshwater lake in ancient times.

The picture below shows a type of plant called kudzu. Kudzu is a fast-growing Asian vine that was introduced into the United States. Kudzu quickly uses available resources and can completely cover the plants in an area. What effect does the rapid growth of kudzu most likely have on an ecosystem?

• The variety of native plants decreases.

• The water supply in the area increases.

• Weather patterns in the area change.

• The number of other plants increases.