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 B - Form & Function
Biology HL
Biology HL

Theme B - Form & Function

Unveiling Abiotic Factors Keys To Species Distribution Globally

Word Count Emoji
406 words
Reading Time Emoji
3 mins read
Updated at Emoji
Last edited on 14th Jun 2024

Table of content

🌎 Species Distribution: Where a species hangs out on Earth!

  • Picture a map. Now imagine putting stickers on all the places your favorite species lives. That's a distribution map! 📍

Plant distribution & those tricky abiotic factors 🌵🌸

  • Abiotic Factors = non-living things that can affect where species live.

    • For plants, these include:
      • Temperature 🌡
      • Water availability 💧
      • Light intensity ☀
      • Soil pH (is it acid or alkaline?)
      • Soil salinity (how salty is the soil?)
      • Available mineral nutrients 🌱
  • Range of Tolerance: Every plant's individual comfort zone for each abiotic factor.

    • If one factor is out of its comfort range, the plant won't grow there.
  • Real-World Examples:

    • Tropical plants be like: "Frost? No thanks!" ❄🌴 They can't handle the cold because they don't have built-in "antifreeze" like northern plants.
    • Northern plants in the tropics: "It's too hot, and I'm sweating (transpiring) too much!" 🌲☀ They're not built for hot, tropical weather.

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IB Resources
Theme B - Form & Function
Biology HL
Biology HL

Theme B - Form & Function

Unveiling Abiotic Factors Keys To Species Distribution Globally

Word Count Emoji
406 words
Reading Time Emoji
3 mins read
Updated at Emoji
Last edited on 14th Jun 2024

Table of content

🌎 Species Distribution: Where a species hangs out on Earth!

  • Picture a map. Now imagine putting stickers on all the places your favorite species lives. That's a distribution map! 📍

Plant distribution & those tricky abiotic factors 🌵🌸

  • Abiotic Factors = non-living things that can affect where species live.

    • For plants, these include:
      • Temperature 🌡
      • Water availability 💧
      • Light intensity ☀
      • Soil pH (is it acid or alkaline?)
      • Soil salinity (how salty is the soil?)
      • Available mineral nutrients 🌱
  • Range of Tolerance: Every plant's individual comfort zone for each abiotic factor.

    • If one factor is out of its comfort range, the plant won't grow there.
  • Real-World Examples:

    • Tropical plants be like: "Frost? No thanks!" ❄🌴 They can't handle the cold because they don't have built-in "antifreeze" like northern plants.
    • Northern plants in the tropics: "It's too hot, and I'm sweating (transpiring) too much!" 🌲☀ They're not built for hot, tropical weather.

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 🌟