Master Transport Systems in Animals fast ⚡ – clear explanations, supportive visuals, OCR-aligned.
You’ll cover
• Why diffusion alone is insufficient in large, multicellular animals.
• How surface area to volume ratio limits exchange by diffusion.
• The need for specialised transport systems to meet metabolic demands.
• The main substances transported in animals and where they move between.
• The different types of circulatory systems found in animals.
• Differences between open and closed circulatory systems.
• Differences between single and double circulatory systems.
What’s included
• Structured tables explaining the limitations of diffusion in animals.
• Clear comparison tables for open versus closed circulatory systems.
• Clear comparison tables for single versus double circulatory systems.
• Labelled diagrams illustrating open, single and double circulatory systems.
• Summary tables linking circulatory system type to organism size and activity level.
• Concise spec reminders embedded alongside diagrams and tables to reinforce key OCR wording and expectations.
Format
Web-based textbook topic. Mobile/desktop friendly. Access with no time limit, updates included.
