{
  "id": "25232642-f112-5427-9967-a48249304409",
  "slug": "d4-2-stability-and-change",
  "title": "D4.2 Stability and Change",
  "course": "IB Biology",
  "level": "SL",
  "syllabusCode": "D4.2",
  "questionCount": 15,
  "page": "https://splycr.com/ib-biology/d4-2-stability-and-change",
  "data": "https://splycr.com/library/d4-2-stability-and-change.json",
  "play": "https://splycr.com/?set=25232642-f112-5427-9967-a48249304409",
  "section": {
    "name": "Theme D: Continuity and change",
    "page": "https://splycr.com/ib-biology/continuity-and-change"
  },
  "source": {
    "name": "Biology by Bradford",
    "href": "https://biologybybradford.com"
  },
  "questions": [
    {
      "number": 1,
      "question": "Predictable change in species composition over time?",
      "answer": "Ecological Succession",
      "wrongOptions": [
        "Primary succession",
        "Secondary succession",
        "Pioneer species"
      ]
    },
    {
      "number": 2,
      "question": "Succession on bare rock/substrate with no pre-existing soil?",
      "answer": "Primary succession",
      "wrongOptions": [
        "Secondary succession",
        "Ecological Succession",
        "Tipping point"
      ]
    },
    {
      "number": 3,
      "question": "Succession after a disturbance (fire/storm) where soil remains?",
      "answer": "Secondary succession",
      "wrongOptions": [
        "Ecological Succession",
        "Primary succession",
        "Trophic cascade"
      ]
    },
    {
      "number": 4,
      "question": "First organisms to colonize (e.g., lichen/mosses)?",
      "answer": "Pioneer species",
      "wrongOptions": [
        "Keystone species",
        "Trophic cascade",
        "Tipping point"
      ]
    },
    {
      "number": 5,
      "question": "Stable, final stage of a community in equilibrium?",
      "answer": "Climax community",
      "wrongOptions": [
        "Pioneer species",
        "Keystone species",
        "Trophic cascade"
      ]
    },
    {
      "number": 6,
      "question": "Ability of an ecosystem to withstand a disturbance?",
      "answer": "Resistance",
      "wrongOptions": [
        "Resilience",
        "Bioaccumulation",
        "Biomagnification"
      ]
    },
    {
      "number": 7,
      "question": "Ability of an ecosystem to recover after a disturbance?",
      "answer": "Resilience",
      "wrongOptions": [
        "Resistance",
        "Bioaccumulation",
        "Biomagnification"
      ]
    },
    {
      "number": 8,
      "question": "Ripple effect in a food web when one level is changed?",
      "answer": "Trophic cascade",
      "wrongOptions": [
        "Tipping point",
        "Climax community",
        "Keystone species"
      ]
    },
    {
      "number": 9,
      "question": "Toxin concentration increasing up the food chain?",
      "answer": "Biomagnification",
      "wrongOptions": [
        "Bioaccumulation",
        "Resistance",
        "Resilience"
      ]
    },
    {
      "number": 10,
      "question": "Nutrient enrichment of water (e.g., fertilizer run-off) causing algal blooms and oxygen depletion?",
      "answer": "Eutrophication",
      "wrongOptions": [
        "Biomagnification",
        "Bioaccumulation",
        "Microplastics"
      ]
    },
    {
      "number": 11,
      "question": "Plastic fragments smaller than 5 mm that pollute oceans and enter food chains?",
      "answer": "Microplastics",
      "wrongOptions": [
        "Eutrophication",
        "Bioaccumulation",
        "Biomagnification"
      ]
    },
    {
      "number": 12,
      "question": "Species with a disproportionately large impact on their environment?",
      "answer": "Keystone species",
      "wrongOptions": [
        "Pioneer species",
        "Climax community",
        "Tipping point"
      ]
    },
    {
      "number": 13,
      "question": "Point where an ecosystem cannot return to its original state?",
      "answer": "Tipping point",
      "wrongOptions": [
        "Trophic cascade",
        "Climax community",
        "Pioneer species"
      ]
    },
    {
      "number": 14,
      "question": "Accumulation of a substance within a single organism over time?",
      "answer": "Bioaccumulation",
      "wrongOptions": [
        "Biomagnification",
        "Pioneer species",
        "Tipping point"
      ]
    },
    {
      "number": 15,
      "question": "Ratio of gross productivity to respiration in a climax community?",
      "answer": "1 : 1 (Energy in = Energy out)",
      "wrongOptions": [
        "Ecological Succession",
        "Secondary succession",
        "Primary succession"
      ]
    }
  ]
}