Biodiversity Quiz

High biodiversity is 

• having a lot of the same organism.
• having a few of the same organism.
• having a lot of variety of different organisms.
• only having one of each organism. 

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Species that are clearly critical to the functioning of an ecosystem are known as

• biodiversity

• keystone species

• main species

• native species

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Which of the following situations is MOST HARMFUL to an ecosystem's food web or food chain?

• introduction of a similar producer
• loss of one of the top consumers
• increase in the population of producers
• disease killing the producers

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The graph above shows the variation in the deer population in the Kaibab Plateau from 1905 to 1939. Between 1907 and 1923, the natural predators of deer were eliminated from the area by hunters. What was the most likely reason for the decline in the deer population after 1924?

• The deer stopped competing for resources because they had no predators.
• The increased number of deer led to increased competition for resources.
• A large number of deer left the region in search of new predators.
• The removal of predators caused fewer resources to be available to the deer.

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Which habitat exhibits the greatest biodiversity?

• A habitat with 15 different species with about 300 individuals each
• A habitat with 10 different species with about 75 individuals each
• A habitat with 4 different species with about 150 individuals each
• A habitat with only one species with about 2000 individual

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Currently sharks are on a rapid decline due to overfishing. If sharks go extinct will this affect the biodiversity of the ocean?

• No, sharks are not important.
• No, sharks will only affect the seal populations.
• Yes, it will disrupt the entire food chain in the ocean.
• Yes, but only a little.

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Why is biodiversity so important?

• Because all species depend on each other to survive, so if one becomes extinct another species that relies on it could go extinct as well
• Because it’s better to have only one variation of each species.
• Because it better to only have a few species on Earth.
• Honestly, I have no idea what biodiversity is!

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When a population grows past the ecosystem's carrying capacity, what happens to the population?

• Continues to grow
• The population starts to die off to return to carrying capcity
• The population will go extinct due to lack of resources
• The population grows then finds a new carrying capacity

A drought has hit this grassland biome. How will this effect the rabbit population?

• The rabbits will increase in number.
• The rabbit population will stay the same.
• The rabbit population will decrease.
• The rabbit population will become extinct immediately.