IMPLACENTAL Meaning and
Definition
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Implacental refers to an organism or a group of animals that do not possess a placenta, a specialized organ that develops during pregnancy and is responsible for the exchange of nutrients, gases, and waste products between the mother and the embryo or fetus. The prefix "im-" in implacental signifies the absence or lack of, emphasizing that these organisms lack a placental structure.
Implacental animals are characterized by their reproductive strategies, which do not involve the development of a placenta for embryo nourishment and support. Instead, these animals showcase alternative reproductive methods, such as laying eggs, in which the embryo develops outside the mother's body and derives nourishment from the surrounding environment or a yolk sac within the egg itself.
Examples of implacental animals include reptiles, amphibians, and most fish species. Reptiles, such as snakes, lizards, and turtles, lay eggs and rely on external sources for embryo nourishment. Amphibians, including frogs and salamanders, also lay eggs and undergo metamorphosis, where the larvae live independently in aquatic environments until they can survive on land. Fish, which encompass a diverse range of species, produce eggs that are subsequently fertilized externally or internally, with the embryos deriving nutrients from the egg yolk or the surrounding water.
In summary, implacental organisms are characterized by their absence of a placenta, relying instead on other reproductive mechanisms to ensure the survival and development of their offspring.
Common Misspellings for IMPLACENTAL
- umplacental
- jmplacental
- kmplacental
- omplacental
- 9mplacental
- 8mplacental
- inplacental
- ikplacental
- ijplacental
- imolacental
- imllacental
- im-lacental
- im0lacental
- impkacental
- imppacental
- impoacental
- implzcental
- implscental
- implwcental
Etymology of IMPLACENTAL
The word "implacental" is a combination of the prefix "im-" which means "without" or "not" and the word "placental".
The term "placental" refers to mammals that give birth to live young, with the fetus being nourished and protected in the uterus by a structure called the placenta. The placenta enables the exchange of nutrients, oxygen, and waste between the mother and fetus during gestation.
Therefore, "implacental" means "without a placenta". It is commonly used in the context of comparing and categorizing different types of animals based on their reproductive methods and the presence or absence of a placenta.
Similar spelling word for IMPLACENTAL
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