Ecology Study Guide Review Part#2

How can humans help organisms survive in an ecosystem?

• increase the number of predators

• decrease the amount of prey

• release CO2 into the atmosphere

• learn about how plants and animals interact in different ecosystems

Which statement represents a characteristic of an ecosystem that would NOT be able to survive?

• More consumers than producers

• Sun provides energy to the producers

• Energy is transferred from the plants to the animals

• There are interactions between living and nonliving things

What will happen to an area after it has been destroyed by a fire.

• it will remain bare forever

• it will turn into a desert

• it will gradually change back into a forest

• it will turn into an entirely different land mass

When beverage companies recycle their bottles and cans, this directly reduces

• air pollution and destruction of the ozone shield

• overpopulation and soil erosion

• solid waste and depletion of resources

• extinction of wildlife

A plant grows wildly around a lake and crowds out the normal plants that live there. It ruins the fishing area and impacts the boating and other water sports. This is an example of

• humans taking the resources

• what happens when you add an organism that should not be there

• an abiotic factor negatively impacting an ecosystem

• the life cycle of a plant

Before the leaves on trees begin to grow in the spring, wildflowers have already bloomed and they produced flowers and seeds. This early growth of wildflowers most likely causes

• a decrease in competition for sunlight between the trees and wildflowers

• a decrease in competition for oxygen between the trees and wildflowers

• an increase in competition for sunlight between the trees and wildflowers

• an increase in competition for oxygen between the trees and wildflowers

According to the food chain diagram, which organism would receive the least amount of energy

• Algae

• Conch

• Shark

• Grouper

A certain fungus is harmful to the outermost skin on your foot because it can cause an infection. This is an example of

• predator

• decomposer

• parasite

• host

A certain fungus is helpful when it recycles nutrients by breaking down dead organisms. This is an example of

• predator

• decomposer

• parasite

• host

In 1865, the lake behind Mrs. Hughes' house was surrounded by open fields. Today, the same area is swampy and surrounded by a forest. Which process is responsible for this change?

• conservation

• ecological succession

• Earth's crust

• humans