467 questions and answers in this section
Explain why polar animals have a thick layer of fat?

Explain why polar animals have a thick layer of fat?

Polar animals have a thick layer of fat just beneath their skin, also known as fatty tissue, which acts as an effective insulator. This thickness...

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Explain why octopuses use their arms for complex tasks?

Explain why octopuses use their arms for complex tasks?

Each arm of an octopus acts like an independent mini-brain, capable of making simple decisions on its own. Its arms contain about two-thirds of the...

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Explain why do frogs at high altitudes hibernate in the mud?

Explain why do frogs at high altitudes hibernate in the mud?

Frogs are cold-blooded animals, or ectotherms, which means they depend on the external environment to maintain their temperature. At high altitudes, the cold is much...

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Explain why do succulent plants have thick and fleshy stems?

Explain why do succulent plants have thick and fleshy stems?

Succulent plants have an extraordinary ability to store water due to their internal tissues filled with highly spongy specialized cells. These cells, called aquifer parenchyma, capture and...

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Explain why the cry of whales can travel hundreds of kilometers underwater?

Explain why the cry of whales can travel hundreds of kilometers underwater?

Water is a great conductor of sound due to its high density: the molecules are close together, and sound easily travels from one to another. Underwater, sound...

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Explain why can dolphins see with sounds using echolocation?

Explain why can dolphins "see" with sounds using echolocation?

Dolphins send out rapid and very precise click sounds. These clicks are produced by their respiratory system and then sent out through a fatty mass...

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Explain why can cat fur cause allergies?

Explain why can cat fur cause allergies?

Contrary to popular belief, it is not actually the fur itself that causes allergies; it is mainly what clings to it. Cats naturally produce small...

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Explain why do Canadian geese migrate in formation with V-shaped patterns?

Explain why do Canadian geese migrate in formation with V-shaped patterns?

Every year, Canadian geese follow a regular route south, mainly due to the intense cold and lack of food in winter. As soon as the...

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Explain why corals have 2 modes of reproduction?

Explain why corals have 2 modes of reproduction?

Corals are quite clever: thanks to their two reproduction strategies, they can quickly invade new underwater territories! With sexual reproduction, they release larvae that travel...

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Explain why do woodlice roll into a ball when they are disturbed?

Explain why do woodlice roll into a ball when they are disturbed?

Pillbugs don’t really have any formidable weapons against predators, so they mainly rely on their astonishing ability to roll into a ball. This simple technique...

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