What insects are born already pregnant? Detailed answer

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What insects are born already pregnant? Detailed answer

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What insects are born already pregnant?

Reproduction of aphids mainly occurs through parthenogenesis and live birth. In many species, newborn aphids are born already pregnant, that is, the egg inside the mother begins to develop even before the birth of the mother herself, and after 10-14 days a new aphid is born.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

Where does the water go when it dries up?

Looking out into the street or looking at the road, you saw water there. One hour of bright sunlight - and the water disappears! Or, for example, laundry hung on a line dries out by the end of the day. Where does the water go? We say that water evaporates. But what does this mean? Evaporation is the process by which a liquid in air quickly becomes a gas or vapour. Many liquids evaporate very quickly, much faster than water. This applies to alcohol, gasoline, ammonia. Some liquids, such as mercury, evaporate very slowly. What causes evaporation? To understand this, you need to understand something about the nature of matter.

As far as we know, every substance is made up of molecules. Two forces act on these molecules. One of them is the bond that draws them to each other. The other is the thermal movement of individual molecules, which causes them to fly apart. If the adhesive force is higher, the substance remains in a solid state. If, however, the thermal motion is so strong that it exceeds cohesion, then the substance becomes or is a gas.

If the two forces are approximately balanced, then we have a liquid. Water, of course, is a liquid. But on the surface of the liquid, there are molecules that move so fast that they overcome the force of cohesion and fly away into space. The process of escape of molecules is called evaporation. Why does water evaporate faster when it is in the sun or heated? The higher the temperature, the more intense the thermal movement in the liquid. This means that more and more molecules are picking up enough speed to fly away.

When the fastest molecules fly away, the speed of the remaining molecules slows down on average. Why is the remaining liquid cooled by evaporation. So when water dries up, that means it has turned into a gas or vapor and has become part of the air.

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