Biology HL
Biology HL
4
Chapters
553
Notes
Theme A - Unity & diversity
Theme A - Unity & diversity
Theme B - Form & Function
Theme B - Form & Function
Theme C - Interaction &  Interdependence
Theme C - Interaction & Interdependence
Theme D - Continuity & Change
Theme D - Continuity & Change
IB Resources
Theme C - Interaction &  Interdependence
Biology HL
Biology HL

Theme C - Interaction & Interdependence

Explore Complex Food Webs & Chains!

Word Count Emoji
429 words
Reading Time Emoji
3 mins read
Updated at Emoji
Last edited on 16th Oct 2024

Table of content

Food Chains vs. Food Webs

  • Food Chain: A simple linear sequence showing who eats whom.
    • Example: Grass 🡪 Grasshopper 🡪 Frog 🡪 Snake
  • Food Web: A complex network that shows how multiple food chains are interconnected. It's like the Facebook of the animal kingdom!
    • Real-world example: In the dry thorn scrub of Argentina, think of a spider eating both an ant and a beetle, while a bird munches on both the spider and the beetle. It's a tangled web!

Trophic Relationships

  • They are web-like because many creatures don't stick to just one menu item.
    • Creatures might eat multiple species and be the dinner for several others!
  • Trophic Level: Each step in a food chain or web. Organisms at the same level generally have the same role in the food chain.
    • Fun Fact: Some creatures are greedy and eat from more than one level. Imagine you eating both salads (producers) and burgers (primary consumers) at a meal!

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IB Resources
Theme C - Interaction &  Interdependence
Biology HL
Biology HL

Theme C - Interaction & Interdependence

Explore Complex Food Webs & Chains!

Word Count Emoji
429 words
Reading Time Emoji
3 mins read
Updated at Emoji
Last edited on 16th Oct 2024

Table of content

Food Chains vs. Food Webs

  • Food Chain: A simple linear sequence showing who eats whom.
    • Example: Grass 🡪 Grasshopper 🡪 Frog 🡪 Snake
  • Food Web: A complex network that shows how multiple food chains are interconnected. It's like the Facebook of the animal kingdom!
    • Real-world example: In the dry thorn scrub of Argentina, think of a spider eating both an ant and a beetle, while a bird munches on both the spider and the beetle. It's a tangled web!

Trophic Relationships

  • They are web-like because many creatures don't stick to just one menu item.
    • Creatures might eat multiple species and be the dinner for several others!
  • Trophic Level: Each step in a food chain or web. Organisms at the same level generally have the same role in the food chain.
    • Fun Fact: Some creatures are greedy and eat from more than one level. Imagine you eating both salads (producers) and burgers (primary consumers) at a meal!

Unlock the Full Content! File Is Locked Emoji

Dive deeper and gain exclusive access to premium files of Biology HL. Subscribe now and get closer to that 45 🌟