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Why do sea animals have streamlined shape?
A streamlined body is a shape of body that reduces resistance when moving. Some animals, such as shark and dolphins, are streamlined so that they have less resistance when swimming in water.
What is the body shape of a seal?
seal, any of 32 species of web-footed aquatic mammals that live chiefly in cold seas and whose body shape, round at the middle and tapered at the ends, is adapted to swift and graceful swimming.
What animal has a streamlined body shape?
Complete Answer: – Three animals that have streamlined bodies are fishes, birds and snakes. Presence of this kind of body shape is advantageous for their living. – For fishes streamlined bodies help them swim in water with the least possible resistance.
Why do seals have claws?
Harbor seals use their claws for scratching, grooming, and defense. Foreflippers are covered with hair. Foreflippers are not as broad as the hind flippers and have less resistance to water flow.
Do seals have claws?
Seals have short, stubby front feet and generally scoot along land on their bellies. If you look closely, you’ll also be able to see the different in their claws: seals have long claws and fur on their front flippers, while sea lions’ front flippers have short claws and are covered in skin.
Why do streamlined shapes travel quicker?
STREAMLINING. When objects move, the air around them generates a type of friction called air resistance, or drag, that slows them down. designed with curved and sloping surfaces to cut through the air and reduce drag. This helps them to move faster and use less fuel.
How does streamlined shape help fish to swim?
A: Streamlining your body reduces the friction of movement to a minimum thus decreasing overall drag. For fishes having a streamlined body that is smooth helps save energy it would otherwise have to expend swimming.
What is the difference between seals and humans?
Seals, on the other hand, have evolved a way to avoid decompression altogether. A diving seal uses oxygen with great efficiency. Seals have about twice as much blood per unit of volume as humans (in seals, blood takes up 12% of the total body weight; in humans, it takes up 7%).
What kind of body does a harbor seal have?
Like many marine animals, Harbor seals have streamlined fusiform bodies, tapered at both ends. Harbor seals have spotty coats. The dorsal side has more spots then the ventral side. To move around, the Harbor seal depends on its flippers.
What kind of nervous system does a seal have?
The nervous system of a seal consists of the brain and spinal cord, along with a branching tree of nerves. Seal brains are relatively large in relation to their body weight: the brain accounts for about 35% of total body weight.
How do seals regulate their body temperature?
Seals regulate their body temperature in several ways. In cold temperatures, the peripheral blood vessels constrict, conserving heat by keeping the warm blood away from the external environment, while insulating blubber reduces heat loss. The hind flippers have numerous superficial blood vessels close to the skin and only a few deep blood vessels.