Problemas
Short Answer 8. What is the evolutionary significance of lobe- finned fishes? 9. Compare and contrast cartilaginous fishes and bony fishes. 10. Describe an adaptation of a marine fish for feeding on small prey like tiny crustaceans. 11. Describe in detail two ways fish adaptations discussed in Chapter 10 would be impacted by increasing ocean temperatures. Critical Thinking 12. A deep-water shark new to science, is collected for the first time.The specimen is studied in detail, but its stomach is empty. How can you get a rough idea of its feeding habits? 13. Write an argument for why hagfishes should or should not belong in the subphylum Vertebrata. Comparing and contrasting hagfishes with other jawless fishes, as well as other fish vertebrates should be included in your evidence. 14. One concept that is applicable across science disciplines is the idea that the way an object is shaped or structured determines many of its properties and functions Discuss the phenome- non of structure determining function with regard to gills.
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Esther
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8. Lobe-finned fishes are significant in the evolutionary history of life on Earth as they are the closest living relatives to terrestrial vertebrates, including humans.9. Cartilaginous fishes have a skeleton made of cartilage, while bony fishes have a skeleton made of bone.10. Marine fish have evolved various adaptations to feed on small prey such as tiny crustaceans, including specialized feeding appendages.11. Fish adaptations discussed in Chapter 10, such as the ability to regulate their internal temperature and the structure of their gills, could be impacted by increasing ocean temperatures.12. To understand the feeding habits of a deep-water shark, one could examine the shark's stomach contents if it were not empty.13. The classification of hagfishes within the subphylum Vertebrata is a topic of debate, with some arguing that they should be included due to their vertebral-like structures, while others argue that they should not be included due to their lack of a well-defined vertebral column.14. The structure of gills in fish is a prime example of how structure determines function, with the gills being structured in such a way as to maximize the surface area for gas exchange.
Explicación
## Step 1Lobe-finned fishes are significant in the evolutionary history of life on Earth. They are the closest living relatives to terrestrial vertebrates, including humans. This is because they possess certain unique features that are not found in other fish species.## Step 2The main difference between cartilaginous fishes and bony fishes lies in their skeletal structure. Cartilaginous fishes have a skeleton made of cartilage, which is lighter and more flexible than bone. On the other hand, bony fishes have a skeleton made of bone, which is denser and provides more support.## Step 3Marine fish have evolved various adaptations to feed on small prey such as tiny crustaceans. One such adaptation is the presence of specialized feeding appendages, such as the pectoral fins in some species, which help them to capture and consume their prey.## Step 4Fish adaptations discussed in Chapter 10, such as the ability to regulate their internal temperature and the structure of their gills, could be impacted by increasing ocean temperatures. For example, the ability to regulate internal temperature could be compromised, and the structure of the gills could be altered, affecting the fish's ability to breathe.## Step 5To understand the feeding habits of a deep-water shark, one could examine the shark's stomach contents if it were not empty. This would provide a rough idea of what the shark has been eating.## Step 6The classification of hagfishes within the subphylum Vertebrata is a topic of debate. Some argue that hagfishes should be included due to their vertebral-like structures, while others argue that they should not be included due to their lack of a well-defined vertebral column.## Step 7The structure of gills in fish is a prime example of how structure determines function. The gills are structured in such a way as to maximize the surface area for gas exchange, allowing the fish to efficiently extract oxygen from the water.