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List of Benchmarks for Science 
 Standard 6.Understands relationships among organisms and their physical environment
TopicInterdependence of organisms
   Level III (Grade 6-8)
  Benchmark 3.Knows ways in which organisms interact and depend on one another through food chains and food webs in an ecosystem (e.g., producer/consumer, predator/prey, parasite/host, relationships that are mutually beneficial or competitive)
   Vocabulary terms
A.  interaction of organisms
B.  interdependence of organisms
C.  ecosystem
D.  producer/consumer relationship
E.  predator/prey relationship
F.  parasite/host relationship
G.  mutualism
H.  competition
  Knowledge/skill statements
  1. Knows ways that organisms interact with one another through food chains   
  2. Knows ways that organisms interact with one another through food webs  A   P  
  3. Knows that organisms depend on one another through food chains in ecosystems   
  4. Knows that organisms depend on one another through food webs in ecosystems  A   P  
  5. Knows producer/consumer interactions  A   P  
  6. Knows predator/prey interactions  A   P  
  7. Knows parasite/host interactions   
  8. Knows relationships that are mutually beneficial in an ecosystem   
  9. Knows relationships that are competitive in an ecosystem  A   
McREL Activity(s)
   Broken Chains and Tangled Webs
   It’s a Cutthroat World (in Yellowstone)

 A  = Assessment items available

 P  = Performance expectation(s) available based on source documents

Citation Log: BD(2E,104,117;​CAE,60;​IB1E,1.4;​IB2E,25;​IBBE,108;​IBEE,17,18;​N2E,92;​NEE,36;​NSE,58;​PE,54;​OLE,5b,5d;​SE,157-158;​TE,46,57;​)
Citation reference
BD = benchmark, declarative
BP = benchmark, procedural
BC = benchmark, contextual

1st letter/number of each code in parentheses:
*   McREL Report
2   Project 2061: Benchmarks for Science Literacy
CA   CDE: Science Framework for California Public Schools
CB   College Board Standards for College Success
DoD   Department of Defense curriculum for Prekindergarten science
FR   France: Pre-Elementary School Program
H   Headstart Child Outcomes Framework
IB1   International Baccalaureate: Primary Years Programme curriculum documents
IB2   International Baccalaureate: Middle Years Program Sciences Guide
IBB   International Baccalaureate: Biology
IBC   International Baccalaureate: Chemistry
IBE   International Baccalaureate: Environmental Systems and Societies Guide
IBP   International Baccalaureate: Physics
IL   Illinois Early Learning Standards
K   Standards for Success
L   Louisana Pre-Kindergarten Content Standards
MH   McGraw-Hill: Pre-Kindergarten Standards: Guidelines for Teaching and Learning
N1   New Standards: Elementary School
N12   NAEP: Released items for grade 12
N2   New Standards: Middle School
N3   New Standards: High School
N4   NAEP: Released items for grade 4
N8   NAEP: Released items for grade 8
NE   National Environmental Education Standards
NS   Science Assessment & Item Specifications for 2009 NAEP, Prepub. Ed.
NZ   New Zealand Early Childhood Curriculum
OL   Ocean Literacy: The essential principles of ocean sciences
P   Pearsall: NSTA: The Content Core
R   Russia: Beginnings: The Fundamentals of Preschool Education
S   NRC: National Science Education Standards
T   TIMSS: Assesment framework for Science
T1   TIMSS: Released items for Population 1 (grade 4)
T2   TIMSS: Released items for Population 2 (grade 8)
T3   TIMSS: Released items for the final year of secondary school (grade 12)
TX1   Texas Prekindergarten Guidelines for Science
TX2   Texas College and Career Readiness Standards
UK   United Kingdom: Desirable Outcomes for Children’s Learning

2nd letter code :
E = Explicitly stated in document
I = Implicit in document

Page number of the cited document