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 A - Unity & diversity
Biology HL
Biology HL

Theme A - Unity & diversity

Unlocking Convergent Evolution Secrets

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

Table of content

Alright, biology rockstars! Let's dive into the fascinating world of convergent evolution and analogous structures. Ever wondered how different species share similarities, yet are fundamentally different? Let's uncover the mysteries together.

What are analogous structures? 🦈🐬

We often find similar traits in different species, but closer examination reveals fundamental differences. Think of the tails of fish and tail fins of whales. They look similar, right? Well, they are not the same! These are known as analogous structures.

 

Imagine it like this: Imagine you and your friend have the same red t-shirt, but upon closer inspection, yours is cotton, while your friend's is silk. Similar in appearance, but different in reality.

Convergent evolution - the great imitator 🦜🦋

But why do these similarities occur? The answer is a funky thing called convergent evolution. This is when structures originate differently but become similar because they perform the same function.

 

Think about it like this: Two people from different countries, who speak different languages, both learning English because they need it for their jobs. Different origins, same purpose!

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IB Resources
Theme A - Unity & diversity
Biology HL
Biology HL

Theme A - Unity & diversity

Unlocking Convergent Evolution Secrets

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

Table of content

Alright, biology rockstars! Let's dive into the fascinating world of convergent evolution and analogous structures. Ever wondered how different species share similarities, yet are fundamentally different? Let's uncover the mysteries together.

What are analogous structures? 🦈🐬

We often find similar traits in different species, but closer examination reveals fundamental differences. Think of the tails of fish and tail fins of whales. They look similar, right? Well, they are not the same! These are known as analogous structures.

 

Imagine it like this: Imagine you and your friend have the same red t-shirt, but upon closer inspection, yours is cotton, while your friend's is silk. Similar in appearance, but different in reality.

Convergent evolution - the great imitator 🦜🦋

But why do these similarities occur? The answer is a funky thing called convergent evolution. This is when structures originate differently but become similar because they perform the same function.

 

Think about it like this: Two people from different countries, who speak different languages, both learning English because they need it for their jobs. Different origins, same purpose!

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 🌟