Define Amniotic egg. Amniotic egg synonyms, Amniotic egg pronunciation, Amniotic egg translation, English dictionary definition of Amniotic egg. n. Any of numerous vertebrates of the group Amniota, characteristically having an amnion during embryonic development and including the reptiles, birds, and...
The eggs could also "breathe" and cope with wastes, allowing the eggs and the amniotes themselves to evolve into larger forms. The amniotic egg represents a critical divergence within the vertebrates, one enabling amniotes to reproduce on dry land—free of the need to return to water for reproduction as required of the amphibians.
amniotic egg The type of egg produced by reptiles, birds, and prototherian (egg-laying) mammals (amniotes), in which the embryo develops inside an amnion. The shell of the egg is either calcium-based or leathery. Source for information on amniotic egg: A Dictionary of Biology dictionary.
The last structure of the amniotic egg is the egg shell, which allows gases to pass through, but keeps fluids from passing into or out of the egg. Examples of Amniotic Eggs. Now that you know what ...
amniotic egg Also found in: Dictionary , Thesaurus , Encyclopedia . an egg covered by an almost impervious shell which protects it and isolates it from the environment but is sufficiently porous to allow gas transfer.
Amniote definition, any vertebrate of the group Amniota, comprising the reptiles, birds, and mammals, characterized by having an amnion during the embryonic stage. See more.
Amniote definition is - any of a group (Amniota) of vertebrates that undergo embryonic or fetal development within an amnion and include the birds, reptiles, and mammals.
Name: Chicken Egg Location: New York, New York The definition of an "amniotic egg" according to our biology textbook is "a shelled egg in which an embryo develops within a fluid-filled amniotic sac and is nourished by a yolk. Produced by reptiles, birds, and oviparous mammals, it enables them to complete their life cycles on…
amniote [am´ne-ōt] any animal that develops an amnion. amniote /am·ni·ote/ (am´ne-ōt) any member of the group of vertebrates that develop an amnion, including reptiles, birds, and mammals. amniote (ăm′nē-ōt′) n. Any of numerous vertebrates of the group Amniota, characteristically having an amnion during embryonic development and including ...
Define amniote. amniote synonyms, amniote pronunciation, amniote translation, English dictionary definition of amniote. n. Any of numerous vertebrates of the group Amniota, characteristically having an amnion during embryonic development and including the reptiles, birds, and...