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- Insects have a tracheal system that consists of: O a. Flat plates along the side of the body. O b. A mass of air filled tubes. Blood vessels running just under the skin. d. O d. Apairof lungs extending Inside the body. Gills on the legs.How do most insects respire? A. through skinB. through gillsC. by lungsD. by trachea systemInsects have a tracheal system that consists of: O a. Flat plates along the side of the body. O b. Amass of air filled tubes. O c. Blood vessels running just under the skin. O d. Apair of lungs extending inside the body. O e. Gills on the legs.
- Which animals lack a true circulatory system?a. cnidarians c. nematodesb. flatworms d. All of these are correct.Match the respiratory organs of FROGS to their functions. 1. Nasal Cavity A. The short tubes of a frog’s breathing system that leads from the larynx to the lungs; passageway of air into the lungs. 2. Glottis B. Amplify the advertisement call of the male and attract females. 3. Pharynx C. Where gases are exchanged between the air and the bloodstream. 4. Trachea D. Passageway of air from the external environment. 5. Larynx E. Allows air to enter glottis then into the larynx. 6. Vocal Sacs F. Controls airflow in and out of the respiratory passages. 7. Bronchi G. Connects the pharynx with lungs. 8. Lungs H. Contains vocal cords; used to conduct air to the lungs and as a voice box so the frog can communicate. 9. Alveolar Ducts I. Exchange point where CO2 leaves and O2 enters the blood. 10. Alveoli J. Tiny tubes that connect the respiratory bronchioles to alveolar sacs. K. Divides the left and right lung.Which group has evolved a respiratory system where air flows one way through the lungs? O lung fish A. frogs B. birds C. mammals D. snakes How do capillaries differ in the brain compared to the rest of the body? A. do not pick up CO2 B. have an extra layer of connective tissue C. are not leaky D. do not have valves
- In which part of the mammalian respiratory system does gas exchange occur? A. bronchioles B. diaphragm C. alveoli D. tracheaAll vertebrates have _______ . a. a closed circulatory system b. a two-chambered heart c. lungs d. hemolymphAdult frogs and toads obtain oxygen througha. gills only.b. gills and lungs.c. lungs and skin.d. lungs only.
- Which of the following groups has a three-chambered heart?a. birds c. mammalsb. reptiles other than birds d. amphibiansIn arthropods, the tracheal system isa. a unique set of structures that function in ingestion and digestion offood.b. a series of branching tubes extending into the body that allow for gasexchange.c. a series of tubules that allow waste products in the blood to bereleased into the digestive tract.d. the series of ommatidia that form the compound eye.e. none of the above.How can aquatic arthropods have larger bodies than their terrestrial counterparts? A. Terrestrial arthropods lack a circulatory system. B. The circulatory system of aquatic arthropods is more efficient. C. Gas exchange across the body surface occurs more readily in aquatic environments. D. Buoyancy of the water can support heavier exoskeletons.