To explain: The reason that adaptation in Argyroneta aquatica for storing air underwater is advantageous over having gills.
Introduction: The diving bell spider (Argyroneta aquatica) lives inside the water. It is dark brown in color, but the presence of hair on the abdomen makes it appear dark gray. It breathes air like other spiders. The air gets trapped by the dense hair on its abdomen and legs. This helps in breathing under water. The trapped air gives a silvery appearance. The diving bells are irregular sheets of silk and protein-based hydrogel. It allows the diffusion of gases but do not allow water to go through. The net diffusion of oxygen in and carbon dioxide out is maintained by the spider.
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Chapter 42 Solutions
Campbell Biology Custom Stony Brook 10 Th Edition
- Using Daphnia and grasshoppers as specific examples, compare how aquatic arthropods accomplish gas exchange with how terrestrial arthropods accomplish gas exchange?arrow_forwardO The toxin causes inappropriate firing of neurons leading to periods of rapid twitching that infected individuals experience as summation leading to tetanus. QUESTION 6 Mammalian lungs are very different in structure compared to amphibian lungs. The lungs of mammals have highly complex branching patterns of airways. The lungs of amphibians are simpler and more sac-like. Over all, the lungs of mammals are capable of much greater rates of gas exchange compared to amphibians. Why is this? O The more complex structure provides more surface area across which gas exchange can occur. O A complex structure means that gases have more contact time with gases compared to a simpler structure. O Mammalian lungs are usually much bigger relative to their bodies compared to amphibian lungs. O The respiratory membranes of mammals are able to diffuse gases across them much faster than amphibians. QUESTION 7 Click Save and Submit to save and submit. Click Save All Answers to save all answers. P Type…arrow_forwardYou receive animal care and use committee approval to catch a fish, prop open its operculum (gill cover), tie a string around its tail, and tow it backwards through the water for experimental purposes. The fish is then released unharmed. This action forces water to flow backwards over the gill filaments and in between the gill lamellae. What effect would this backwards water flow have on respiration? It would reduce efficiency of gas exchange between water and blood The only effect would be due to the fish's discomfort from this treatment. O It would improve efficiency of gas exchange between water and bloodarrow_forward
- O The toxin causes inappropriate firing of neurons leading to periods of rapid twitching that infected individuals experience as surnmation leading to tetanus. QUESTION 6 Mammalian lungs are very different in structure compared to amphibian lungs. The lungs of mammals have highly complex branching patterns of airways. The lungs of amphibians are simpler and more sac-like. Over all, the lungs of mammals are capable of much greater rates of gas exchange compared to amphibians. Why is this? O The more complex structure provides more surface area across which gas exchange can occur. O A complex structure means that gases have more contact time with gases compared to a simpler structure. O Mammalian lungs are usually much bigger relative to their bodies compared to amphibian lungs. O The respiratory membranes of mammals are able to diffuse gases across them much faster than amphibians. QUESTION 7 Click Save and Submit to sve and submit. Click Save AL Answers to save all answers. P Type here…arrow_forwardExplain how bird respiratory system works and why it is the most efficient in all animals. Including the following words in your answer, two cycle, one way flow, cross current.arrow_forwardList corresponding functions of these major respiratory organs in frogs 1. Nares 2. Buccal cavity 3. Glottis 4. Epiglottis 5. Larynx 6. Lungs Include the references.arrow_forward
- Why do some, if not most aquatic organisms, have supplemental respiratory organs as compared to strictterrestrial animals? BRIEFLY answer, be straight to the pointarrow_forwardWhen researchers first discovered that airflow through a bird’s paleopulmonal parabronchi is unidirectional, the question arose as to whether gas exchange is countercurrent, cocurrent, or cross- current. Some ingenious investigators carried out experiments in which they measured the efficiency of gas exchange between air and blood in duck lungs when parabronchial airflow was in its normal direction and when the direction of parabronchial airflow was artificially reversed. The efficiency did not change. How is this evidence against countercurrent and cocurrent gas exchange? How is this evidence for cross-current exchange?arrow_forwardWhy do avian lungs are unique compared with other vertebrates? state their comparison.arrow_forward
- Crayfish have gills but open circulatory systems, whereas squid have gills but closed systems. What does this difference tell you about each animal's average metabolic needs? What other large surface do squid use for gas exchange, and what internal structure in the squid serves as defense? Explain everything in three paragraphs.arrow_forwardTest Your Understanding 14. PREDICT What problems would be faced by a terrestrial animal having gills instead of lungs?arrow_forwardEVOLUTION LINK Aquatic mammals such as whales and dolphins use lungs rather than gills for gas exchange. Propose a hypothesis to explain why.arrow_forward
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage LearningBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
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