APES Unit 2 (Biodiversity)

Multiple Choice

A small marine area has phytoplankton as its only producer.  Should the marine biologist be concerned about this ecosystem?

• No the fish do not need the phytoplanton. Since there are so many fish, there is high biodiversity.
• Yes, this ecosystem has low biodiversity.  Without a producer the herbivores will die out leaving no food.
• Yes, this system has high biodiversity; however the fish can adapt and get food from another source.
• Yes, the fish will overate to get all of the phytoplankton that is left, then they will die.

Multiple Choice

How would you categorize a mangrove forest?

• Coastal Wetland

• Freshwater Wetland

• Limnetic

• Riparian Ecosystem

Open Ended

What do you think biodiversity is?

Multiple Choice

Which shows more biodiversity Image A or Image B. Why?

• Image B is more biodiverse, because shows more different species than image A.

• Image A is more biodiverse, because shows a greater number of organisms that image B

• Both images show the same biodiversity

Open Ended

Explain the Bottleneck Effect. What are its implications for genetic diversity?

Multiple Choice

What are the implications of habitat loss on specialist and generalist species?

• Specialist species are more vulnerable

• Generalist species are more vulnerable

• Both types of species are equally affected

• Habitat loss has no effect on species

Draw

Draw an example of a specialist species

Draw

Draw an example of a generalist species

Match

Match the following

• Generalist Species

• Specialist Species

• Ecological Niche

Species that can thrive in a variety of environments

Species that have a narrow ecological niche

The role an organism plays in its environment

• Species that can thrive in a variety of environments

• Species that have a narrow ecological niche

• The role an organism plays in its environment

Multiple Choice

What is the relationship between species richness and absolute latitude as shown in the graph?

• Species richness increases with latitude

• Species richness decreases with latitude

• Species richness remains constant with latitude

• Species richness is unrelated to latitude

Open Ended

Describe a biome with low species richness and low species evenness.

Multiple Choice

The picture below shows how runoff from an urban location is routed to the ocean. Pollution in the runoff can damage ocean ecosystems. A likely cause of the runoff is: 

• larger amounts of farmland to support more people 
• pavement and concrete prevents water from entering the groundwater 
• increased rainfall in urban areas 
• sediments being deposited in the streams and rivers around urban areas 

Match

Match the following

• Provisioning

• Cultural

• Supporting

• Regulating

Fresh Water

Recreatio

Soil Formation

Air Quality

• Fresh Water

• Recreatio

• Soil Formation

• Air Quality

Multiple Choice

What are the benefits obtained from regulating ecosystem processes?

• Flood prevention

• Energy

• Educational

• Biological diversity maintenance

Multiple Choice

Marine scientists monitor atmospheric levels of carbon dioxide. As atmospheric levels rise, more of the gas dissolves in the oceans. Calcium carbonate (CaCO3) dissolves as more carbon dioxide enters the oceans. Marine organisms such as clams need CaCO3 to build their exoskeletons.

Based on this information, which change is most likely to be a direct result of these increasing levels of oceanic carbon dioxide?

• Frequent rainfall will dilute the effect of the carbon dioxide in the water

• There will be an overpopulation of oysters and other shelled marine species.

• The water level will rise and cause floods, damaging coastal ecosystems with contaminated water.

• Many species of marine organisms will be weakened, making them unable to produce and maintain their shells