Why is the move to the swim bladder an important evolutionary step for fish
Homework Answers
Swim bladder provides buoyancy to the fish due to which they can swim in the water without continuously moving their fins. Early fishes as well as cartilage fishes lives without swim bladder but they have to either continously move their fins to stay at a particular level in ocean or they have to live on sea floor. In first case they expand too much energy which is not efficient whereas to live in sea base all their life is not practical. Also modern fish has bones which is more dense than cartilage that makes them prone to sink. To avoid this, nature gave modern fish an additional support in form of swim bladder that can help them to float without expanding much energy. Presence of swim bladder also made their fins free which can be used now in performing other functions such as moving up, down or backward too.Therefore move to the swim bladder an important evolutionary step for fish.
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Swim Bladder Many ray-finned fish adjust their buoyancy by changing the volume of gas in a...
Swim Bladder Many ray-finned fish adjust their buoyancy by changing the volume of gas in a swim bladder located just below their spine. Calculate the change in the buoyant force on a fish if its volume increases by 14 cm3, assuming it swims in seawater.
Consider a predatory fish that lives in shallow water. It has a swim bladder and gills,...
Consider a predatory fish that lives in shallow water. It has a swim bladder and gills, fins, and has external fertilization in the water. What changes must it evolve to live successfully on land instead of in the water? (4 points…hint: list at least four changes) This is all that I have but we have been studying about adaptation, mutation and evolution.
1. A 1 kg fish lives at a depth of 300 m in seawater. The specific...
1. A 1 kg fish lives at a depth of 300 m in seawater. The specific density of the fish, excluding its swim bladder, is 1.07 A To be neutrally buoyant at this depth, what fraction of the fish's volume must its swim bladder fill? B What is the gas pressure inside the swim bladder at this depth? C Suppose that the fish suddenly descends to 400 m. The gas in its swim bladder will contract under pressure, and the...
3. One important evolutionary change is from fish to amphibians, the first air breathing, four-legged animals....
3. One important evolutionary change is from fish to amphibians, the first air breathing, four-legged animals. A. What is one anatomical modification that facilitated this transition from water to land? (Example: the evolution of eggshells prevented desiccation of eggs allowing tetrapods to move away from water) (2 points) Describe the development of the new/modified structure listed in 'A'. (4 points) B. ollema lo ds od mworl C. Describe the type of developmental repatterning that occurred during the change listed 'A'....
why is it important to understand the evolutionary origins of behavior
why is it important to understand the evolutionary origins of behavior
python 2. Consider this code: animal_to_locomotion = {'fish': ['swim'], 'kangaroo': ['hop'], 'frog': ['swim', 'hop']} Indicate whether...
python
2. Consider this code: animal_to_locomotion = {'fish': ['swim'], 'kangaroo': ['hop'], 'frog': ['swim', 'hop']} Indicate whether each statement will cause an error and, if not, whether the statement will increase the number of key/value pairs in the dictionary: Statement Error? Increases length of dictionary? (yes or no) | (yes or no) animal_to_locomotion['human'] = ['swim', 'run', 'walk', 'airplane'] animal_to_locomotion['orangutan'].append(' brachiate') animal_to_locomotion['kangaroo'].append('airplane') animal_to_locomotion['frog'] = ['tapdance'] animal_to_locomotion['dolphin'] = animal_to_locomotion['fish']
A boy floating on a pond watches a fish swim away from him as in the...
A boy floating on a pond watches a fish swim away from him as in the figure below. If the fish is 2.45 m beneath the surface, for what maximum distance d (in m) will he be able to see the fish? Neglect the height of the boy's eyes above the water.
Why are Lucy and the law took footprints so important in the scope of evolutionary change...
Why are Lucy and the law took footprints so important in the scope of evolutionary change and proving a missing link in humans?
QUESTION 25 Why might be of an advantage for a bacterium trying to colonize the bladder...
QUESTION 25 Why might be of an advantage for a bacterium trying to colonize the bladder or the intestines to be motile? Flagella function as adhesions enabling bacteria to resist flushing and colonize the host mucosal epithellum. Flagella enable bacteria to swim away from phagocytes and resist enhanced attachment (opsonization) Flagella enable bacteria to stay in an area with plenty of nutrients and swim away from harmful chemicals like antibiotics Flagella enable bacteria to swim through the protective mucus so...
44. A boy floating on a pond watches a fish swim away from him as in...
44. A boy floating on a pond watches a fish swim away from him as in Figure P22.44. If the fish is 2.25 m beneath the surface, for what maximum distance d will he be able to see the fish? Neglect the height of the boy's eyes above the water. 2.25 m Figure P22.44
1. A 1 kg fish lives at a depth of 300 m in seawater. The specific density of the fish, excluding its swim bladder, is 1.07 A To be neutrally buoyant at this depth, what fraction of the fish's volume must its swim bladder fill? B What is the gas pressure inside the swim bladder at this depth? C Suppose that the fish suddenly descends to 400 m. The gas in its swim bladder will contract under pressure, and the...
3. One important evolutionary change is from fish to amphibians, the first air breathing, four-legged animals. A. What is one anatomical modification that facilitated this transition from water to land? (Example: the evolution of eggshells prevented desiccation of eggs allowing tetrapods to move away from water) (2 points) Describe the development of the new/modified structure listed in 'A'. (4 points) B. ollema lo ds od mworl C. Describe the type of developmental repatterning that occurred during the change listed 'A'....
python
2. Consider this code: animal_to_locomotion = {'fish': ['swim'], 'kangaroo': ['hop'], 'frog': ['swim', 'hop']} Indicate whether each statement will cause an error and, if not, whether the statement will increase the number of key/value pairs in the dictionary: Statement Error? Increases length of dictionary? (yes or no) | (yes or no) animal_to_locomotion['human'] = ['swim', 'run', 'walk', 'airplane'] animal_to_locomotion['orangutan'].append(' brachiate') animal_to_locomotion['kangaroo'].append('airplane') animal_to_locomotion['frog'] = ['tapdance'] animal_to_locomotion['dolphin'] = animal_to_locomotion['fish']
QUESTION 25 Why might be of an advantage for a bacterium trying to colonize the bladder or the intestines to be motile? Flagella function as adhesions enabling bacteria to resist flushing and colonize the host mucosal epithellum. Flagella enable bacteria to swim away from phagocytes and resist enhanced attachment (opsonization) Flagella enable bacteria to stay in an area with plenty of nutrients and swim away from harmful chemicals like antibiotics Flagella enable bacteria to swim through the protective mucus so...
44. A boy floating on a pond watches a fish swim away from him as in Figure P22.44. If the fish is 2.25 m beneath the surface, for what maximum distance d will he be able to see the fish? Neglect the height of the boy's eyes above the water. 2.25 m Figure P22.44
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