104 questions and answers in this section

Natural Sciences » Biology

Explain why some shells produce pearls?

Explain why some shells produce pearls?

When a foreign body such as a grain of sand or a parasite accidentally enters the shell, the organism of the mollusk instinctively reacts. To...

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Explain why mantis shrimp can see colors invisible to us.

Explain why mantis shrimp can see colors invisible to us.

Mantis shrimp have truly unique eyes, composed of thousands of facets called ommatidia. These eyes function independently of one another and move in all directions, providing exceptional...

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Explain why mantis shrimps can strike as fast as bullets?

Explain why mantis shrimps can strike as fast as bullets?

Mantis shrimp possess incredibly specialized raptorial appendages, which are like tightly coiled spring-like arms. They store their muscular energy in these limbs, just like one...

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Explain why bacteria are essential for the decomposition of organic waste.

Explain why bacteria are essential for the decomposition of organic waste.

Bacteria are the invisible champions of recycling in nature. They break down everything organic (dead leaves, food scraps, or animal remains) into simple nutrients. Without...

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Explain why pelicans can swallow so many fish without choking?

Explain why pelicans can swallow so many fish without choking?

Pelicans have an expandable pouch under their beak made of very elastic skin that functions like a natural fishing net. This pouch can hold several...

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Explain why hair turns gray with age?

Explain why hair turns gray with age?

The older we get, the less our body produces melanin, the pigment responsible for the color of our hair. The culprits behind this phenomenon? Melanocytes, those specialized...

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Explain why aphids give birth to clones?

Explain why aphids give birth to clones?

In aphids, clonal reproduction is a phenomenon called parthenogenesis. No need for a male, female aphids produce offspring directly without fertilization. Convenient, right? Here, there's...

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Explain why some species of insects light up at night?

Explain why some species of insects light up at night?

Bioluminescence is the ability of a living organism, such as certain insects, to produce and emit its own light. In insects, this luminous phenomenon is...

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Explain why some animal species engage in symbiosis to survive?

Explain why some animal species engage in symbiosis to survive?

In nature, survival often depends on little things, and symbiosis can significantly improve an animal's chances of success. Rather than relying solely on its own...

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Explain why are hummingbirds the only birds capable of flying backwards?

Explain why are hummingbirds the only birds capable of flying backwards?

Hummingbirds have very atypical wings as they are long and narrow, in addition to being highly flexible at the base. This unique shape allows them...

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