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May 2025
6m 52s

Genetics & Evolution: Inheritance Theory...

Seneca Learning
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Jul 2025
Circulatory System: Alveoli 🫁 GCSE Biology Learning & Revision
In this episode, we will discuss the alveoli in the circulatory system.Alveoli are microscopic air sacs within the lungs where the crucial exchange of oxygen and carbon dioxide occurs between air and blood through diffusion. Their structure is highly adapted for this vital proces ... Show More
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In this episode, we look at transportation in cells. We will explain how substances move into and out of cells, highlighting three key mechanisms. Diffusion is described as the movement of particles from high to low concentration areas. Osmosis is presented as a specific type of ... Show More
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