SCI-MS.LS2.02

Life Science Logo7th Grade (SCI) Life Science Standards
[LS2] Ecosystems: Interactions, Energy, and Dynamics

SCI-MS.LS2.02 Construct an explanation that predicts patterns of interactions among organisms across multiple ecosystems.

Clarification Statement: Emphasis is on predicting consistent patterns of interactions in different ecosystems in terms of the relationships among and between organisms and abiotic components of ecosystems. Examples of types of interactions could include competitive, predatory, and mutually beneficial.
Disciplinary Core Ideas
LS2.A: Interdependent Relationships in Ecosystems Similarly, predatory interactions may reduce the number of organisms or eliminate whole populations of organisms. Mutually beneficial interactions, in contrast, may become so interdependent that each organism requires the other for survival. Although the species involved in these competitive, predatory, and mutually beneficial interactions vary across ecosystems, the patterns of interactions of organisms with their environments, both living and nonliving, are shared.


Student Learning Targets:

Knowledge Targets

  • I can recognize or recall specific terminology (predator/prey, producer/consumer, symbiotic relationships, biotic and abiotic factors, habitat and niche, competition, levels of organization in the ecosystem: species, population, community, ecosystem).  
  • I can identify symbiotic relationships.

Reasoning Targets

  • I can predict what would happen to an ecosystem with changing ratios of producers, consumers, or decomposers. 
  • I can compare and contrast habitat and niche. 
  • I can differentiate symbiotic relationships. 

Skills (Performance) Targets

  • I can

Product Targets

  • I can

Proficiency Scale

The Student can ...
1 Beginning
... with help, demonstrate a partial understanding of some of the simpler details and processes (Score 2.0 content) and some of the more complex ideas and processes (Score 3.0 content).
  • descriptors
2 Developing
... demonstrate no major errors or omissions regarding the simpler details and processes but exhibits major errors or omissions regarding the more complex ideas and processes (Score 3.0 content).
  • recognize or recall specific terminology.
  • identify symbiotic relationships
Vocabulary: predator/prey, producer/consumer, symbiotic relationships, biotic and abiotic factors, habitat and niche, competition, levels of organization in the ecosystem: species, population, community, ecosystem.
3 Proficient
“The Standard.”
... demonstrate no major errors or omissions regarding any of the information and processes that were end of instruction expectations.
  • predict what would happen to an ecosystem with changing ratios of producers, consumers, or decomposers.
  • compare and contrast habitat and niche.
  • differentiate symbiotic relationships
  • relate competition in across and within ecosystems to resource availability.
  • explain predator/prey interactions
Sample Activity:
Good buddies symbiosis game
Ecosystem interactions research project
Predator/Prey online simulations and labs
Analyzing predator/prey population graphs
Relates resource available to the type of organisms found in an ecosystem and recognizes the adaptations of those organisms to the environment.

4 Advanced
... demonstrate in-depth inferences and applications regarding more complex material that go beyond end of instruction expectations.
  • descriptors

Click Here to view the Proficiency Scale.

Resources

Vocabulary

  • predator/prey 
  • producer/consumer 
  • symbiotic relationships
  • biotic and abiotic factors 
  • habitat and niche
  • carrying capacity 
  • limiting factors 
  • cooperation and competition 
  • trophic levels 
  • levels of the ecosystem

Websites

  • Ecosystems 
  • Symbiosis
  • Chapter 25 of Life Science textbook
  • Title of website with a URL to open in a new window

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