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Wrong! Lungs are not homologous to gill slits – they do not have anything approaching a common evolutionary history.Gills are evaginations of the body surface. Some open directly to the environment; others, as in fishes, are enclosed in a cavity. In contrast, lungs represent invaginations of the body surface. Many invertebrates use gills as a major means of gas exchange; a few, such as the pulmonate land snail, use lungs.Similarities Between Gills and Lungs
They are surrounded by blood vessels. They help to take oxygen from the outside environment while eliminating carbon dioxide to the outside. Both have a respiratory membrane with a large surface area to increase the efficiency of gas exchange.
How are lungs and gills related?
Gills are evaginations of the body surface. Some open directly to the environment; others, as in fishes, are enclosed in a cavity. In contrast, lungs represent invaginations of the body surface. Many invertebrates use gills as a major means of gas exchange; a few, such as the pulmonate land snail, use lungs.
Are gills and lungs similar?
Similarities Between Gills and Lungs
They are surrounded by blood vessels. They help to take oxygen from the outside environment while eliminating carbon dioxide to the outside. Both have a respiratory membrane with a large surface area to increase the efficiency of gas exchange.
Gas Exchange In Different Animals | Physiology | Biology | FuseSchool
Images related to the topicGas Exchange In Different Animals | Physiology | Biology | FuseSchool
Did gills evolve into lungs?
Darwin believed that lungs evolved from gas bladders, but the fact that fish with lungs are the oldest type of bony fish, plus molecular and developmental evidence, points to the reverse – that lungs evolved before swim bladders.
Can a creature have both gills and lungs?
Lungfish have a unique respiratory system, having both gills and a lung. It is the only type of fish to have both organs, and there are only six known species around the world.
What is common between gills and alveoli?
– Both organs are used to breathe air. – They inhale oxygen and exhale carbon dioxide form the body. – Both follow the principle of osmosis. – Both organs are richly supplied with blood capillaries transport oxygen and carbon dioxide.
How are gills similar to lungs based on the information provided in the diagram?
How are gills similar to lungs based on the information provided in the diagram? Gills allow for the diffusion of oxygen into the bloodstream from high to low concentration, similar to the lungs.
What is a common feature of fish gills and mammalian lungs?
Identify two features that are common to gills, tracheae, and lungs, as well as one trait that is unique to each. Common features include large surface area, short diffusion distance (a thin gas exchange membrane), and a mechanism that keeps fresh air or water moving over the gas exchange surface.
See some more details on the topic Are gills and lungs homologous? here:
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Which of the following statements comparing respiration in fish and in mammals is correct?
Which of the following statements comparing respiration in fish and in mammals is correct? Answers: The respiratory medium for fish carries more oxygen than the respiratory medium of mammals.
How different are the gills from the lungs in terms of gas exchange mechanism?
Because of the constant flow of gas across the gas-exchange membrane and the constant partial pressure differences, gills are the most efficient respiratory system in exchanging gases. In animals that contain coelomic fluid instead of blood, oxygen diffuses across the gill surfaces into the coelomic fluid.
What is homologous to what are fins homologous?
The paired fins in fish and limbs in tetrapods are a good example of homologous organs. They were derived from locomotive organs in common ancestors of vertebrates, and they share many developmental processes and genetic networks.
Why did lungs evolve in fish?
It has long been believed that the lungs of land vertebrates like us humans evolved from “swim bladders” — gas-filled sacs in bony fish that help them adjust their depth.
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Why did fish have lungs?
Here’s where lungfish have an advantage. Unlike other fish with gills alone, lungfish can surface, take a breath and survive when other fish might be lacking air. In fact, much like many sea mammals, lungfish are obligate air breathers—they have to breathe air above water periodically to survive.
Can any animals breathe both air and water?
Amphibians are vertebrates (animals with backbones) which are able, when adult, to live both in water and on land. Unlike fish, they can breathe atmospheric oxygen through lungs, and they differ from reptiles in that they have soft, moist, usually scale-less skin, and have to breed in water.
Do amphibians have both lungs and gills?
Larval amphibians breathe primarily through gills. Adult amphibians may retain and use gills, lose gills and develop lungs, breathe with both gills and lungs, or have neither and utlize cutaneous respiration mechansims.
Do fish have lungs yes or no?
How fish breathe. Unlike land animals, which have lungs to take in oxygen from the air, fish have gills to breathe in the oxygen contained in water. This process of breathing begins when a fish gulps water through its mouth.
What characteristic do both lungs and gills have in common?
All the respiratory organs (like the skin, lungs, gills) have a rich supply of blood for transporting respiratory gases.
What do all respiratory organs have in common?
Common features of respiratory organs (gills, lungs and skin). (i) A large surface area to absorb sufficient oxygen. (ii) Thin walls for easy exchange of respiratory gases by diffusion. (iii) Rich blood supply for transport of gases.
What is the major difference between gills and lungs?
| Gills | Lungs |
|---|---|
| Gills are important to extract dissolved oxygen in water. | Lungs are important to extract atmospheric oxygen. |
| Gills are found in aquatic organisms. | Lungs are found in terrestrial air-breathing animals. |
| Gills are external extensions of the body surface. | Lungs are internal folds. |
Which of the following fish organs is most closely related to the lungs of a human?
The movement of the body surface compresses and expands the tracheal tube system to ventilate air. Which of the following fish organs is most closely related to the lungs of a human? epididymis tubes.
Which group of animals breathe with gills?
Gills or gill-like organs, located in different parts of the body, are found in various groups of aquatic animals, including mollusks, crustaceans, insects, fish, and amphibians.
Which feature is common to gills lungs and tracheae?
identify 2 structures common to gills, trachae, lungs and one unique. Common features include large surface area, short diffusion distance (a thin gas exchange membrane), and a mechanism that keeps fresh air or water moving over the gas exchange surface.
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What are the similarities and differences among insects fish birds and mammals in terms of gas exchange?
Mammals and insects both get their oxygen from air, while fish get oxygen from water. Water has a much lower oxygen concentration than air, and is harder to ventilate because it is more viscous. This means fish need to have a more efficient gas exchange system to get enough oxygen from the water.
Why are gills more efficient than lungs?
Gills are very efficient at removing oxygen from water: there is only 1/20 the amount of oxygen present in water as in the same volume of air. Water flows over gills in one direction while blood flows in the opposite direction through gill capillaries. This countercurrent flow maximizes oxygen transfer.
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