Are there ephemerals among the animal world? Detailed answer

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Are there ephemerals among the animal world? Detailed answer

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Are there ephemerals among the animal world?

"One-day" is the popular name for the detachment of mayflies, adults and reproductive individuals of which (imago) live from a few seconds to several days, some species - 1 day (hence the name). Mayfly larvae living in water develop from 1 to 3 years.

Author: Mendeleev V.A.

Random interesting fact from the Great Encyclopedia:

How is Easter celebrated?

By the phases of the moon. Bright Sunday of Christ in all Christian countries since 325 is celebrated on the first Sunday after the first spring full moon. If the full moon falls on a Sunday, Easter is celebrated later on the following Sunday so that it does not coincide with the Jewish holiday of Pesach. Since the Orthodox and Catholic churches use different calendar systems ("old" and "new" style), the days of Easter are rarely the same for Orthodox and Catholics.

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alien plants 27.10.2018

The symbiosis of fungi and plant roots is able to withstand extreme conditions of low gravity and exist in soil that is practically devoid of organic matter.

Scientists from the University of Zurich were puzzled by the question that worried Mark Watney's character in the film "The Martian" when he invented ways to grow potatoes in the conditions of Mars. As a result, experts have created the most real "alien" plants. On Earth, flora grows in fertile soil, enriched with organic matter, and is also adapted to Earth's gravity. Under the conditions of other planets, terrestrial plants simply will not survive, but scientists are solving this problem.

Two factors - low gravity and soil without organic matter - prevent the cultivation of plants on other planets. But the symbiosis between soil fungi and plant roots, regulated by the release of the hormone strigolactone, the properties of which scientists have carefully studied and strengthened, made it possible to breed petunias that can exist even in poor organic soil and in microgravity conditions.

Petunias belong to the nightshade family, which also includes edible crops: eggplant, tomatoes and potatoes. Supported by the release of the hormone, fungi imitate soil organic matter, and the plant is able to extract phosphates, nitrogen and water necessary for growth from the ground faster and more. It is these "alien" varieties that in the future will become the basis for agriculture on Mars and other planets, as well as on spacecraft.

Such modified plants will also be able to increase yields on Earth, as well as reduce the greenhouse effect, but their properties must still be fully investigated before global implementation.

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