HS-LS2-6 - Revision history

Conrad: PLD table: tag each question chip with its exam discipline for color coding

2026-10-18T13:46:49Z

PLD table: tag each question chip with its exam discipline for color coding

Conrad: PLD table: abbreviate question labels to match the questions-by-performance-level pages (e.g. "Aug 2026 · Q14")

2026-10-18T13:33:45Z

PLD table: abbreviate question labels to match the questions-by-performance-level pages (e.g. "Aug 2026 · Q14")

Conrad: PLD table: list all released questions at each level, matching the questions-by-performance-level pages

2026-10-18T12:05:31Z

PLD table: list all released questions at each level, matching the questions-by-performance-level pages

Conrad: PLDs: add example released question per level (editor judgment)

2026-10-16T06:37:34Z

PLDs: add example released question per level (editor judgment)

Conrad: Section order: Vocabulary now comes before Performance Level Descriptions

2026-10-13T17:26:58Z

Section order: Vocabulary now comes before Performance Level Descriptions

Conrad: SEO: topic in title, description, exam names in link text, standard template now sets the title

2026-10-13T17:00:34Z

SEO: topic in title, description, exam names in link text, standard template now sets the title

Conrad: Add Vocabulary section (Biology)

2026-09-27T21:47:32Z

Add Vocabulary section (Biology)

Conradrichman: Reorder sections: Assessment, then Performance Level Descriptions, then Resources

2026-09-21T02:35:46Z

Reorder sections: Assessment, then Performance Level Descriptions, then Resources

Conradrichman: Assessment section: table of all tagged exam and sample-cluster questions, grouped by subject and exam (most recent first)

2026-09-21T02:22:27Z

Assessment section: table of all tagged exam and sample-cluster questions, grouped by subject and exam (most recent first)

Carolineleonard at 14:10, 10 May 2025

2025-05-10T14:10:56Z

@@ Line 161: / Line 161: @@
 | Level5 = Use claims, evidence, and reasoning, to argue the merits of explanations regarding complex interactions in ecosystems and their ability to maintain relatively consistent numbers and types of organisms in stable conditions but changing conditions may result in a new ecosystem.
 | Level4 = Evaluate the claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions but changing conditions may result in a new ecosystem.
-| Example4 = [[Questions:Invasive Mussels#q3|Aug 2026 · Q37]]
+| Example4 = <span class="pld-chip pld-chip-bio">[[Questions:Invasive Mussels#q3|Aug 2026 · Q37]]</span>
 | Level3 = Evaluate a claim using evidence that the complex interactions in an ecosystem maintain relatively consistent numbers and types of organisms in stable conditions or that changing conditions may result in a new ecosystem.
-| Example3 = [[Questions:Nitrogen: Friend or Foe?#q3|June 2026 · Q8]] [[Questions:The Forest Gardener#q4|June 2026 · Q36]] [[Questions:Keystone Species: Black-Tailed Prairie Dogs#q2|June 2025 · Q39]] [[Questions:Salt Marsh Shoreline#q3|June 2025 · Q24]]
+| Example3 = <span class="pld-chip pld-chip-bio">[[Questions:Nitrogen: Friend or Foe?#q3|June 2026 · Q8]]</span> <span class="pld-chip pld-chip-bio">[[Questions:The Forest Gardener#q4|June 2026 · Q36]]</span> <span class="pld-chip pld-chip-bio">[[Questions:Keystone Species: Black-Tailed Prairie Dogs#q2|June 2025 · Q39]]</span> <span class="pld-chip pld-chip-bio">[[Questions:Salt Marsh Shoreline#q3|June 2025 · Q24]]</span>
 | Level2 = Identify an evidence-based claim that the complex interactions in an ecosystem maintain relatively consistent numbers and types of organisms in stable conditions or that changing conditions may result in a new ecosystem <b><u>or</u></b> given evidence, from those provided, identify the claim that describes the complex interactions.
-| Example2 = [[Questions:Deep-Sea Dilemmas#q3|Aug 2026 · Q7]] [[Questions:Parrots and Biodiversity#q1|Aug 2026 · Q40]] [[Questions:Green and Black Frogs#q4|June 2026 · Q13]] [[Questions:Ivory and Elephants#q4|Aug 2025 · Q18]] [[Questions:Coral Reefs Sample Cluster#q1|June 2025 · Q1]] [[Questions:Salt Marsh Shoreline#q1|June 2025 · Q22]] [[Questions:Salt Marsh Shoreline#q5|June 2025 · Q26]]
+| Example2 = <span class="pld-chip pld-chip-bio">[[Questions:Deep-Sea Dilemmas#q3|Aug 2026 · Q7]]</span> <span class="pld-chip pld-chip-bio">[[Questions:Parrots and Biodiversity#q1|Aug 2026 · Q40]]</span> <span class="pld-chip pld-chip-bio">[[Questions:Green and Black Frogs#q4|June 2026 · Q13]]</span> <span class="pld-chip pld-chip-bio">[[Questions:Ivory and Elephants#q4|Aug 2025 · Q18]]</span> <span class="pld-chip pld-chip-bio">[[Questions:Coral Reefs Sample Cluster#q1|June 2025 · Q1]]</span> <span class="pld-chip pld-chip-bio">[[Questions:Salt Marsh Shoreline#q1|June 2025 · Q22]]</span> <span class="pld-chip pld-chip-bio">[[Questions:Salt Marsh Shoreline#q5|June 2025 · Q26]]</span>
 | Level1 = Identify the evidence, from those provided, that supports the claim that complex interactions in an ecosystem maintain relatively consistent numbers and/or types of organisms in stable conditions.
-| Example1 = [[Questions:Keystone Species Rule#q1|Jan 2026 · Q10]] [[Questions:Dinosaurs Evolution Sample Cluster#q3|June 2025 · Q3]]
+| Example1 = <span class="pld-chip pld-chip-bio">[[Questions:Keystone Species Rule#q1|Jan 2026 · Q10]]</span> <span class="pld-chip pld-chip-bio">[[Questions:Dinosaurs Evolution Sample Cluster#q3|June 2025 · Q3]]</span>
 }}

@@ Line 161: / Line 161: @@
 | Level5 = Use claims, evidence, and reasoning, to argue the merits of explanations regarding complex interactions in ecosystems and their ability to maintain relatively consistent numbers and types of organisms in stable conditions but changing conditions may result in a new ecosystem.
 | Level4 = Evaluate the claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions but changing conditions may result in a new ecosystem.
-| Example4 = [[Questions:Invasive Mussels#q3|August 2026 Question 37]]
+| Example4 = [[Questions:Invasive Mussels#q3|Aug 2026 · Q37]]
 | Level3 = Evaluate a claim using evidence that the complex interactions in an ecosystem maintain relatively consistent numbers and types of organisms in stable conditions or that changing conditions may result in a new ecosystem.
-| Example3 = [[Questions:Nitrogen: Friend or Foe?#q3|June 2026 Question 8]], [[Questions:The Forest Gardener#q4|June 2026 Question 36]], [[Questions:Keystone Species: Black-Tailed Prairie Dogs#q2|June 2025 Question 39]], [[Questions:Salt Marsh Shoreline#q3|June 2025 Question 24]]
+| Example3 = [[Questions:Nitrogen: Friend or Foe?#q3|June 2026 · Q8]] [[Questions:The Forest Gardener#q4|June 2026 · Q36]] [[Questions:Keystone Species: Black-Tailed Prairie Dogs#q2|June 2025 · Q39]] [[Questions:Salt Marsh Shoreline#q3|June 2025 · Q24]]
 | Level2 = Identify an evidence-based claim that the complex interactions in an ecosystem maintain relatively consistent numbers and types of organisms in stable conditions or that changing conditions may result in a new ecosystem <b><u>or</u></b> given evidence, from those provided, identify the claim that describes the complex interactions.
-| Example2 = [[Questions:Deep-Sea Dilemmas#q3|August 2026 Question 7]], [[Questions:Parrots and Biodiversity#q1|August 2026 Question 40]], [[Questions:Green and Black Frogs#q4|June 2026 Question 13]], [[Questions:Ivory and Elephants#q4|August 2025 Question 18]], [[Questions:Coral Reefs Sample Cluster#q1|June 2025 Question 1]], [[Questions:Salt Marsh Shoreline#q1|June 2025 Question 22]], [[Questions:Salt Marsh Shoreline#q5|June 2025 Question 26]]
+| Example2 = [[Questions:Deep-Sea Dilemmas#q3|Aug 2026 · Q7]] [[Questions:Parrots and Biodiversity#q1|Aug 2026 · Q40]] [[Questions:Green and Black Frogs#q4|June 2026 · Q13]] [[Questions:Ivory and Elephants#q4|Aug 2025 · Q18]] [[Questions:Coral Reefs Sample Cluster#q1|June 2025 · Q1]] [[Questions:Salt Marsh Shoreline#q1|June 2025 · Q22]] [[Questions:Salt Marsh Shoreline#q5|June 2025 · Q26]]
 | Level1 = Identify the evidence, from those provided, that supports the claim that complex interactions in an ecosystem maintain relatively consistent numbers and/or types of organisms in stable conditions.
-| Example1 = [[Questions:Keystone Species Rule#q1|January 2026 Question 10]], [[Questions:Dinosaurs Evolution Sample Cluster#q3|June 2025 Question 3]]
+| Example1 = [[Questions:Keystone Species Rule#q1|Jan 2026 · Q10]] [[Questions:Dinosaurs Evolution Sample Cluster#q3|June 2025 · Q3]]
 }}

@@ Line 163: / Line 163: @@
 | Example4 = [[Questions:Invasive Mussels#q3|August 2026 Question 37]]
 | Level3 = Evaluate a claim using evidence that the complex interactions in an ecosystem maintain relatively consistent numbers and types of organisms in stable conditions or that changing conditions may result in a new ecosystem.
-| Example3 = [[Questions:Salt Marsh Shoreline#q3|June 2025 Question 24]]
+| Example3 = [[Questions:Nitrogen: Friend or Foe?#q3|June 2026 Question 8]], [[Questions:The Forest Gardener#q4|June 2026 Question 36]], [[Questions:Keystone Species: Black-Tailed Prairie Dogs#q2|June 2025 Question 39]], [[Questions:Salt Marsh Shoreline#q3|June 2025 Question 24]]
 | Level2 = Identify an evidence-based claim that the complex interactions in an ecosystem maintain relatively consistent numbers and types of organisms in stable conditions or that changing conditions may result in a new ecosystem <b><u>or</u></b> given evidence, from those provided, identify the claim that describes the complex interactions.
-| Example2 = [[Questions:Deep-Sea Dilemmas#q3|August 2026 Question 7]]
+| Example2 = [[Questions:Deep-Sea Dilemmas#q3|August 2026 Question 7]], [[Questions:Parrots and Biodiversity#q1|August 2026 Question 40]], [[Questions:Green and Black Frogs#q4|June 2026 Question 13]], [[Questions:Ivory and Elephants#q4|August 2025 Question 18]], [[Questions:Coral Reefs Sample Cluster#q1|June 2025 Question 1]], [[Questions:Salt Marsh Shoreline#q1|June 2025 Question 22]], [[Questions:Salt Marsh Shoreline#q5|June 2025 Question 26]]
 | Level1 = Identify the evidence, from those provided, that supports the claim that complex interactions in an ecosystem maintain relatively consistent numbers and/or types of organisms in stable conditions.
-| Example1 = [[Questions:Keystone Species Rule#q1|January 2026 Question 10]]
+| Example1 = [[Questions:Keystone Species Rule#q1|January 2026 Question 10]], [[Questions:Dinosaurs Evolution Sample Cluster#q3|June 2025 Question 3]]
 }}

@@ Line 161: / Line 161: @@
 | Level5 = Use claims, evidence, and reasoning, to argue the merits of explanations regarding complex interactions in ecosystems and their ability to maintain relatively consistent numbers and types of organisms in stable conditions but changing conditions may result in a new ecosystem.
 | Level4 = Evaluate the claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions but changing conditions may result in a new ecosystem.
 | Level3 = Evaluate a claim using evidence that the complex interactions in an ecosystem maintain relatively consistent numbers and types of organisms in stable conditions or that changing conditions may result in a new ecosystem.
 | Level2 = Identify an evidence-based claim that the complex interactions in an ecosystem maintain relatively consistent numbers and types of organisms in stable conditions or that changing conditions may result in a new ecosystem <b><u>or</u></b> given evidence, from those provided, identify the claim that describes the complex interactions.
 | Level1 = Identify the evidence, from those provided, that supports the claim that complex interactions in an ecosystem maintain relatively consistent numbers and/or types of organisms in stable conditions.
 }}

@@ Line 65: / Line 65: @@
 | style="background-color:white;" | [[Questions:Dinosaurs Evolution Sample Cluster#q3|Question 3]]
 |}
 == Vocabulary ==
@@ Line 165: / Line 156: @@
 * [[Questions:Keystone Species Rule#q1|trophic level]] – Jan 2026
 </div>
 == {{Resourcesheading}} ==

@@ Line 1: / Line 1: @@
 {{Navlinks|HS-LS2-2|HS-LS2-7|← HS-LS2-2|HS-LS2-7 →}}
 {{learningstandard
 | ls = Evaluate the claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions, but changing conditions may
 result in a new ecosystem.
@@ Line 17: / Line 17: @@
 ! style="padding: 0.5em 1.5em;" | Question
 |-
-| rowspan="3" style="background-color:white;" | [[August 2026 Life Science: Biology Exam|August 2026]]
+| rowspan="3" style="background-color:white;" | [[August 2026 Life Science: Biology Exam|August 2026 Biology Regents]]
 | style="background-color:white;" | [[Questions:Deep-Sea Dilemmas|Deep-Sea Dilemmas]]
 | style="background-color:white;" | [[Questions:Deep-Sea Dilemmas#q3|Question 7]]
@@ Line 27: / Line 27: @@
 | style="background-color:white;" | [[Questions:Parrots and Biodiversity#q1|Question 40]]
 |-
-| rowspan="3" style="background-color:white;" | [[June 2026 Life Science: Biology Exam|June 2026]]
+| rowspan="3" style="background-color:white;" | [[June 2026 Life Science: Biology Exam|June 2026 Biology Regents]]
 | style="background-color:white;" | [[Questions:Nitrogen: Friend or Foe?|Nitrogen: Friend or Foe?]]
 | style="background-color:white;" | [[Questions:Nitrogen: Friend or Foe?#q3|Question 8]]
@@ Line 37: / Line 37: @@
 | style="background-color:white;" | [[Questions:The Forest Gardener#q4|Question 36]]
 |-
-| style="background-color:white;" | [[January 2026 Life Science: Biology Exam|January 2026]]
+| style="background-color:white;" | [[January 2026 Life Science: Biology Exam|January 2026 Biology Regents]]
 | style="background-color:white;" | [[Questions:Keystone Species Rule|Keystone Species Rule]]
 | style="background-color:white;" | [[Questions:Keystone Species Rule#q1|Question 10]]
 |-
-| style="background-color:white;" | [[August 2025 Life Science: Biology Exam|August 2025]]
+| style="background-color:white;" | [[August 2025 Life Science: Biology Exam|August 2025 Biology Regents]]
 | style="background-color:white;" | [[Questions:Ivory and Elephants|Ivory and Elephants]]
 | style="background-color:white;" | [[Questions:Ivory and Elephants#q4|Question 18]]
 |-
-| rowspan="4" style="background-color:white;" | [[June 2025 Life Science: Biology Exam|June 2025]]
+| rowspan="4" style="background-color:white;" | [[June 2025 Life Science: Biology Exam|June 2025 Biology Regents]]
 | style="background-color:white;" | [[Questions:Salt Marsh Shoreline|Salt Marsh Shoreline]]
 | style="background-color:white;" | [[Questions:Salt Marsh Shoreline#q1|Question 22]]
@@ Line 58: / Line 58: @@
 | style="background-color:white;" | [[Questions:Keystone Species: Black-Tailed Prairie Dogs#q2|Question 39]]
 |-
-| rowspan="2" style="background-color:white;" | [[Biology Sample Questions|Sample clusters]] (Spring 2024)
+| rowspan="2" style="background-color:white;" | [[Biology Sample Questions|Biology sample clusters]] (Spring 2024)
 | style="background-color:white;" | [[Questions:Coral Reefs Sample Cluster|Coral Reefs]]
 | style="background-color:white;" | [[Questions:Coral Reefs Sample Cluster#q1|Question 1]]
@@ Line 200: / Line 200: @@
 | TOPIC = HS. Interdependent Relationships in Ecosystems
 }}

@@ Line 8: / Line 8: @@
 | ab =
 }}
 == {{Assessmentheading}} ==
@@ Line 81: / Line 66: @@
 |}
 == {{Dimensionsheading}} ==

@@ Line 27: / Line 27: @@
 {{assessmentmessage}}
-* [[Questions:Coral Reefs Sample Cluster#q1|Coral Reefs Q1]]
+{| class="wikitable" style="width:100%; text-align:center"
-* [[Questions:Dinosaurs Evolution Sample Cluster#q3|Dinosaurs Evolution Q3]]
+! style="padding: 0.5em 1.5em;" | Exam

@@ Line 37: / Line 37: @@
 | SEP1 = Engaging in Argument from Evidence:
 Evaluate the claims, evidence, and reasoning behind currently accepted explanations or solutions to determine the merits of arguments.
 | DCI1 = LS2.C: Ecosystem Dynamics, Functioning, and Resilience
 * A complex set of interactions within an ecosystem can keep its numbers and types of organisms relatively constant over long periods of time under stable conditions. If a modest biological or physical disturbance to an ecosystem occurs, it may return to its more or less original status (i.e., the ecosystem is resilient), as opposed to becoming a very different ecosystem. Extreme fluctuations in conditions or the size of any population, however, can challenge the functioning of ecosystems in terms of resources and habitat availability.