PDF Succession: Equilibrium in Ecosystems
Name ____________________________________ Date __________ Class ___________________
SECTION 17-4
REVIEW AND REINFORCE
Succession: Equilibrium in Ecosystems
Understanding Main Ideas
Answer the following questions on a separate sheet of paper. 1. What organisms are usually the pioneer species in a new area? How do these
organisms prepare the area for other species? 2. The illustration below shows succession in an abandoned field. How did the
plant populations in the community change over time?
? Prentice-Hall, Inc.
Building Vocabulary
Identify each of the following as an example of primary succession or secondary succession. Write your answers in the spaces provided. 3. An old house was torn down. Small weeds and grasses grew in the vacant lot.
Over the next few years, bushes and tree seedlings began to grow. ___________________________________________________________________________ 4. An undersea volcano erupted and formed a small island. Mosses and lichens began to grow on the bare volcanic rock. ___________________________________________________________________________ 5. A logging company cut down all the large spruce trees in an area of forest. After the area was cleared, spruce seedlings began to sprout. Rabbits, birds, and deer returned to the area. ___________________________________________________________________________
Science Explorer Grade 7
23 Unit 4 Resources
Name ____________________________________ Date __________ Class ___________________
SECTION 17-4
ENRICH
From Pond to Forest
You have learned that over many years, the process of succession can transform an abandoned field into a forest. Succession can also transform a pond into a forest. How can an aquatic ecosystem change into a land ecosystem? Examine the sequence of changes shown in the figures below.
1
2
? Prentice-Hall, Inc.
3
4
Answer the following questions on a separate sheet of paper.
1. What type of succession is shown in this example? Explain your answer. 2. Name three pond populations that could not survive in a forest ecosystem. 3. Name three forest populations that could not survive in a pond ecosystem. 4. Describe how the ecosystem changed from Figure 1 to Figure 4.
24 Unit 4 Resources
Science Explorer Grade 7
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related download
- pdf 4 3 succession
- pdf b c a d pond b
- pdf lesson aquatic and marine ecosystem onnections edis
- pdf pond succession education service center region 2
- pdf notes 2 ecological succession weebly
- pdf answer key for mount st helens a story of succession questions
- pdf changes in ecosystems ecological succession d155
- pdf key concept ecological succession is a process of change in
- pdf biology eoc study guide answer key and content focus report
- chapter 2 cycles in nature section 2 ecological succession
Related searches
- what is succession in biology
- what is succession in science
- pdf english grammar in use
- 4 ecosystems and communities answers
- primary succession stages in order
- pdf and cdf in probability
- convert pdf to jpeg in adobe reader
- convert pdf to jpeg in windows 10
- pdf to doc in word
- ecosystems impact factor
- human impact on ecosystems articles
- forest ecosystems impact factor