Back to Questions
Want to know:
Feature:Air sac is richly supplied with blood capillaries//numerous dense capillary networkAdaptation:-Substances absorbed can be transported away-So as to maintain a steep concentration gradient across the wall of air sacs- increase gas exchange efficiencyFeature:Many air sac folded into alveoliAdaptation:Increase surface area for gas exchangeFeature:-Wall of air sac and capillaries are both one-cell thick(1)/ very thin-air sac are in close contact with capillariesAdaptation:Shorten diffusion distances of passage of gases for gas exchange
Get a detailed, AI-powered explanation for this question and thousands more on StudyFetch.
Get the Answer for FreeHow StudyFetch Helps You Master This Topic
AI-Powered Answers
Get instant, detailed explanations powered by AI that understands your course material.
Deep Understanding
Go beyond surface-level answers with step-by-step breakdowns and examples.
Personalized Learning
Sparky adapts to your learning style and helps you connect ideas.
Practice & Test
Turn any question into flashcards, quizzes, and practice tests to solidify your knowledge.
Explore More Questions
- breathinggas exchange between blood and air in lungsgas transport in blood between the lungs and body cellsinternal respiration
- A violent twist of a ligament resulting in pain, swelling, and bruising. The most common locations for a sprain are the ankle and wrist : Sprain
- The functional unit of a muscle fiber is the _________, a segment from one Z disc to the next.A) MyofibrilB) I bandC) SarcomereD) Neuromuscular junction E) Striation