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EXCHANGE SURFACES VERIFIED SOLUTIONS 2023/2024
EXCHANGE SURFACES 
VERIFIED SOLUTIONS 
2023/2024 
Why do multicellular organisms need specialised exchange surfaces but single celled 
organisms don't? - ANSWER single celled organisms can exchange materials across 
their CSM to meet requirements 
- metabolic activity low → O2 needs low + CO2 produced is low 
- large SA:V ratio 
Multicellular organisms are the opposite 
- high metabolic rate (active + maintain temp) 
- small SA:V ratio 
3 main features of an efficient exchange surface - ...
- Exam (elaborations)
- • 24 pages •
EXCHANGE SURFACES 
VERIFIED SOLUTIONS 
2023/2024 
Why do multicellular organisms need specialised exchange surfaces but single celled 
organisms don't? - ANSWER single celled organisms can exchange materials across 
their CSM to meet requirements 
- metabolic activity low → O2 needs low + CO2 produced is low 
- large SA:V ratio 
Multicellular organisms are the opposite 
- high metabolic rate (active + maintain temp) 
- small SA:V ratio 
3 main features of an efficient exchange surface - ...
NHA CCMA MEDICAL ASSISTANT LATEST EXAM 2023-2024 REAL EXAM 200 QUESTIONS AND CORRECT ANSWERS(VERIFIED ANSWERS)|AGRADE
ATI PN MED SURG PROCTORED EXAM 2023 , PN ATI MED SURG PROCTORED EXAM LATEST UPDATE 2022/2023 100%CORRECTLY VERIFIED ANSWERS GRADED A+
NURS 6560 Fitzgerald Acute Care NP Exit Exam (150 Q & A) (Solution Enclosed): Walden University Acute Care NP Exit Exam v-2 with complete solutio
NSG 120 Final Exam Questions Correctly Answers| LATEST UPDATE
NURS 6560 Fitzgerald Acute Care NP Exit Exam (150 Q & A) (Solution Enclosed): Walden University Acute Care NP Exit Exam v-2 with complete solutio
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