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Ovoviviparity, ovovivipary, ovivipary, or aplacental viviparity is a term used as a "bridging" form of reproduction between egg-laying oviparous and live-bearing viviparous reproduction. Ovoviviparous animals possess embryos that develop inside eggs that remain in the mother's body until they are ready to hatch.
The egg is not retained in the body for most of the period of development of the embryo within the egg, which is the main distinction between oviparity and ovoviviparity. [1] Oviparity occurs in all birds, most reptiles, some fishes, and most arthropods. Among mammals, monotremes (four species of echidna, and the platypus) are uniquely oviparous.
When a line has a single point, the element is said to be active; otherwise, with two points, the element is passive. Because there are four lines, and since each line can be either active or passive, there are 2 4, or 16, different figures. The different combinations of elements yields different representations or manifestations of the figure ...
An ovivore or ovivorous animal is one that eats eggs, from Latin ovum, egg, and vorare, to devour. [1] An obligate ovivore or egg predator is an animal that feeds exclusively on eggs. [2] This is different from an egg parasite, an animal such as a parasitic wasp which grows inside the egg of another insect. [3]
Oomancy was a common form of divination practiced in ancient Greece and Rome, where it was believed that one could tell the future by interpreting the shapes formed when the separated whites from an egg was dropped into hot water. [2] For example: If the egg white resembled the shape of a bell, it would mean a wedding would be taking place soon.
As an egg ages, it loses moisture and carbon dioxide, making the whites thinner and the yolk more susceptible to breaking. And when you eat old, expired eggs, your risk of getting a food-borne ...
An aphid giving viviparous birth, an unusual mode of reproduction among insects. In animals, viviparity is development of the embryo inside the body of the mother, with the maternal circulation providing for the metabolic needs of the embryo's development, until the mother gives birth to a fully or partially developed juvenile that is at least metabolically independent.
Here's what you need to know about choosing eggs, understanding egg carton labels, and picking the best option for your needs. Why Do Egg Cartons Have So Many Different Labels?