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A shark can stay in water at a desired level without swimming or moving its fins. Give reason.
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- a When a fish swims by bending its body and tail from side to side, the swimming movement is produced mainly by the contraction of muscles located in a siphon through which water leaves the body. limbs that are attached straight under the body. blocks on either side of the backbone. limbs that stick out sideways from the body.Sharks maintain a neutral buoyancy by means of: placoid scales swim bladders caudal fin flapping squalene fat V being isotonicPlease answer number 4 for: "Blacktip Reef Shark"
- Describe how a snake moves by lateral undulation. Why might this form of locomotion be inefficient on an unstable surface (such as sand) or a surface lacking irregularities? What forms of locomotion would work for a snake under these conditions?As human activities put more and more carbon dioxide (CO2) into the air, the ocean takes up more CO2 and becomes increasingly acidic. Increased ocean acidity makes it more difficult for marine animals to produce their calcium-rich hard parts. List three types of invertebrates that are likely to be adversely affected by an increase in ocean acidity.Imagine if mermaids are real. What are their biological and Physical demands (LOCOMOTION, BREATHING, and THERMOREGULATION)?
- Compare the swimming movements of eels with those of trout, and explain why the latter are more efficient for rapid locomotionDescribe how a deficiency in Vitamin C could result in fish skeletal deformitiesCompare the movement of jellyfish and a comb jelly by making a diagrammatic illustration of the mechanism of its motion/swimming . Label your drawings and use arrows to emphasize the difference in its actions. Write a two-sentence discussion of your diagram.
- Elephant seals do deep dives to forage for food. The energy used by the seals in diving depends on their body composition; for example, fatter seals use less energy to swim to the surface at the end of a dive, allowing them to takelonger, more productive dives. Explain why you’d expect this to be the case.Safia and Mia investigate floating. They use six identical small containers with lids. Safia puts a different mass of sand into each container. Mia drops the containers into the water. All the containers float. Look at the diagram of one of these containers and the table below. May please help me with this .A rise in atmospheric carbon dioxide increases ocean acidity, making it harder for animals to build calcium carbonate parts. List some invertebrate animals that increased ocean acidity could harm in this way