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Unit 6: Ecology IntroDoc

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Last updated about 4 years ago
20 questions
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Standards 2.A.1; 2.B.2; 2.B.3; 2.C.1
Essential Questions: You will be able to answer:
* How do biotic and abiotic factors affect the carrying capacity and biodiversity of an ecosystem?
* How does matter cycle and energy flow in an ecosystem?
* How does photosynthesis, cellular respiration, decomposition, and combustion cycle carbon?
* Why do populations maintain their size when conditions remain stable but can change when the ecosystem changes?

The Learning Goals:
  • I can explain the nature of interactions between organisms in predator/prey relationships and different symbiotic relationships.S
  • I can explain how cooperative and competitive predator/prey relationships help maintain balance within an ecosystem.
  • I can describe the flow of energy and matter within a food web.
  • I can explain why there are generally more producers than consumers in an energy pyramid.
  • I can predict how the use and flow of energy will be altered due to changes in a food web.
  • I can explain the processes of recycling nitrogen, oxygen and carbon in an ecosystem.
  • I can explain the importance of the recycling of nitrogen, oxygen, and carbon within an ecosystem.
Question 1
1.

Using the video posted above, answer #1-3: (REMINDER: Copying and pasting answers will result in a zero.)

According to the video, what is ecology?

Question 2
2.

Choose all of the following that are abiotic.

Question 3
3.

Choose all of the following that are biotic.

Visit this site and read the passage first, then watch the video, pausing as needed. Use these to answer # 4- 11.
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Question 4
4.

What are the three types of symbiosis?

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Question 12
12.

Use this video about food webs and energy pyramids to answer #13-18.

Describe a food chain.

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Question 14
14.

How is a food chain different from a food web?

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Question 15
15.

Explain biodiversity.

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Question 18
18.

Watch this video about White-Nose Syndrome and answer #18-20.


How do scientists suspect the fungus was brought to the United States?

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Question 19
19.

How would a decreasing bat population be detrimental to our ecosystem?

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Question 20
20.

What are researchers doing in an attempt to find a solution to the problem?

Question 5
5.

Explain the difference between obligate and facultative mutualism.

Question 6
6.

What type of macromolecule requires nitrogen?

Question 7
7.

How do organisms obtain nitrogen from the atmosphere?

Question 8
8.

What type of symbiosis is demonstrated by plant roots and Glomeromycota fungi? Explain.

Question 9
9.

How many species of organisms are involved in symbiotic relationships with leaf-cutter ants? (Don't forget to count the ants as one of the organisms.)

Question 10
10.

What type of symbiotic relationships exist between soil nematodes, bioluminescent bacteria, and insects?

Question 11
11.

How do gut microbes help mammalian herbivores? (Name 3 ways.)

Question 13
13.

How much energy (%) is available at the next trophic level of an energy pyramid?

Question 16
16.

Describe a benefit of biodiversity.

Question 17
17.

Are decomposers heterotrophs or autotrophs?