167 questions and answers in this section

Natural Sciences » Botany

Explain why plants communicate with each other through biochemical signals.

Explain why plants communicate with each other through biochemical signals.

In response to difficult environmental conditions, plants use chemical signals to "warn their neighbors." For example, in cases of drought, some release a hormone called...

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Explain why apples fall from the tree.

Explain why apples fall from the tree.

If apples fall to the ground, it is primarily because the planet exerts on them a force of attraction called gravity. More specifically, the Earth...

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Explain why some plants prefer shade to light?

Explain why some plants prefer shade to light?

Some plants really prefer dark places, and to adapt, they have developed quite ingenious biological tricks. For example, their leaves are often larger, thinner, and...

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Explain why pepper is spicy?

Explain why pepper is spicy?

The spiciness of pepper mainly comes from a molecule called piperine. This organic molecule is primarily found in the outer coating and seeds of the...

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Explain why some red algae are used in cosmetics?

Explain why some red algae are used in cosmetics?

Red algae are packed with natural molecules capable of retaining water like real little sponges. Among them are polysaccharides, a type of special sugar, which...

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Explain why pepper sometimes causes sneezing?

Explain why pepper sometimes causes sneezing?

Pepper mainly contains a molecule called piperine. It is what gives it its spicy flavor and its distinctive scent. In addition to piperine, pepper contains...

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Explain why plants have different scents?

Explain why plants have different scents?

Each plant has its own cocktail of aromatic molecules, resulting in very varied scents. The secret behind these smells mainly lies in chemical compounds such...

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Explain why flowers open and close?

Explain why flowers open and close?

Flowers have a kind of internal clock that is sensitive to day-night cycles, primarily regulated by light. This light sensitivity is ensured by receptors called...

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Explain why the sargassum algae forms immense floating mats in the Atlantic Ocean?

Explain why the sargassum algae forms immense floating mats in the Atlantic Ocean?

Sargassum is a type of brown algae primarily originating from the Sargasso Sea, an area of the Atlantic Ocean known for its vast stretches of...

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Explain why dryads are linked to trees.

Explain why dryads are linked to trees.

In Greek mythology, dryads are nymphs directly connected to specific trees, living in symbiosis with them. Since antiquity, it is often said that they appear...

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