3.1- Exchange Surfaces and Breathing 5.0 / 5 based on 1 rating ? BiologyExchange Surfaces and BreathingASOCR Created by: McTigheCreated on: 18-04-18 11:24 97285310641 Across 1. What is the plate called which covers the gills? (3, 9) 5. What are the tubes called found in the spiracles? (7) 6. How do gases move through walls of alveoli? (9) 9. What do the trachea branch into? (10) Down 2. Describe the shape of the heart in an insect (4, 8, 4) 3. What is the blood called, not found in the blood vessels? (9) 4. Why do mammals need extra respiration? (3, 6) 7. Do multi-cellular organisms have a small or large surface area-volume ratio? (5) 8. What is the name of the flow is fish which help maintain concentration gradients across lamellae? (14, 4) 10. What are the lungs protected by? (7)
Comments
No comments have yet been made