CA 4 Review

What are the pioneer species for this type of ecological succession based on the picture?

• Trees

• Shrubs

• Grasses and weeds

• Mosses and lichens

What are the pioneer species for this type of ecological succession based on the picture?

• Trees

• Shrubs

• Grasses and weeds

• Mosses and lichens

In a primary succession, the first organisms to colonize a barren (no soil) environment are mosses and lichens. Where do mosses and lichens grow?

• Soil

• Trees

• Rocks

• All of these

Which of the following correctly describes the soil existence for secondary succession?

• The ecosystem has pre-existing soil.

• The ecosystem lacks soil.

• The ecosystem has a favorable environment.

• The ecosystem has slow progression.

Which among the following catastrophic events may lead to primary succession?

• Volcanic eruption

• Farming

• Landslide

• Forest fires

Which of the following organisms compete for grain as shown in this food web?

• Bird, mouse, and grasshopper

• Rabbit and grasshopper

• Bird, grasshopper, and owl.

• Mouse, owl, and fox

Which of the following statements is true about the organisms in this food web?

• The bird is an herbivore and has more energy compared to the mouse.

• The mouse is a herbivore and has more energy than the carrot.

• The fox is a carnivore and has more energy compared to a rabbit.

• The rabbit is a herbivore and hasmore energy compared to a fox.

Which statement is true about a food web?

SELECT TWO ANSWERS.

• All animals are consumers in a food web.

• All animals are carnivores in a food web.

• All plants are consumers in a food web.

• All plants are producers in a food web.

How many are the carnivores in this food web?

• 1

• 2

• 3

• 4

Which consumer is an omnivore in this food web?

• Caterpillar

• Frog

• Bird

• Squirrel