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Question 6(Multiple Choice Worth 3 points)

(05.06 LC)

Oil spills often kill many plants and animals in the affected area. What is the consequence of these mass die offs?

Increased biodiversity
Increased speciation
Reduced biodiversity
Reduced speciation
Question 7(Multiple Choice Worth 3 points)
(05.03 LC)

Both commensalism and parasitism are relationships that benefit at least one species. Which of the following describes the effect on the other species in the relationship?

Commensalism has a positive effect on the other species, while parasitism has no effect.
Commensalism has no effect on the other species, while parasitism has a positive effect.
Commensalism has a negative effect on the other species, while parasitism has no effect.
Commensalism has no effect on the other species, while parasitism has a negative effect.
Question 8(Multiple Choice Worth 3 points)
(05.06 MC)

How can an oil spill result in a loss of biodiversity?

Large die-offs in the affected areas reduce the number of species.
Oil in the animals' bodies causes them to mate with individuals outside of their species.
The oil causes many species to extend their ranges beyond suitable conditions.
Weather changes resulting from the spill prevent animal reproduction.
Question 9(Multiple Choice Worth 3 points)
(05.04 MC)

People are concerned that a coastal wetland might be affected by a new housing development. How could scientists provide information to help prove this concern is valid before construction begins?

Scientists would conduct a study to discover the amount of biodiversity in the area.
Scientists would not be able to provide information to the developers due to environmental laws.
Scientists would conduct a study before and after the development to monitor the water quality.
Scientists would look at data collected from a different type of environment and present that to the developers.
Question 10(Multiple Choice Worth 3 points)
(05.02 MC)

The illustration shows a representative food web found in the marine environment. Which food chain best represents one flow of energy through this marine ecosystem?

The marine food web shows phytoplankton at the bottom of the food web. Arrows extending from the phytoplankton image upward and across point to various organisms such as zooplankton, krill, fish, birds, seals penguins and whales in order of consumption.
© 2016 Mark Flanders

Birds → Leopard Seal → Carnivorous Zooplankton → Herbivorous → Zooplankton
Phytoplankton → Krill → Fish → Baleen Whales
Phytoplankton → Herbivorous Zooplankton → Fish → Leopard Seals
Smaller Toothed Whale → Penguin → Fish → Krill

1 answer

Here are the answers to your multiple-choice questions:

Question 6: The consequence of mass die-offs due to oil spills is:

  • Reduced biodiversity

Question 7: The effect of commensalism and parasitism on the other species in the relationship is:

  • Commensalism has no effect on the other species, while parasitism has a negative effect.

Question 8: An oil spill can result in a loss of biodiversity by:

  • Large die-offs in the affected areas reduce the number of species.

Question 9: To help prove concerns about the coastal wetland before construction begins, scientists could:

  • Scientists would conduct a study to discover the amount of biodiversity in the area.

Question 10: The food chain that best represents one flow of energy through the marine ecosystem is:

  • Phytoplankton → Krill → Fish → Baleen Whales

Feel free to ask if you have more questions!