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placentalia मीनिंग इन हिंदी
placentalia उदाहरण वाक्य
उदाहरण वाक्य
अधिक: आगे- The most recent phylogenetic studies recover it as actually a paraphyletic assemblage leading to Placentalia.
- The older system was essentially the same, but used the names Monotremata, Marsupialia, and Placentalia.
- Viviparous mammals are in the subclass Theria; those living today are in the Marsupialia and Placentalia infraclasses.
- The date of divergence of " Protungulatum " and " Placentalia " is approximately 75 Ma.
- The Prototheria-Metatheria-Eutheria system has a number of miniscule differences from the Monotremata-Marsupialia-Placentalia system.
- Eutheria was named in 1872 by Theodore Gill; in 1880 Thomas Henry Huxley defined it to encompass a more broadly defined group than Placentalia.
- The two infraclasses of Theria in the Prototheria-Theria system may also be " Marsupialia " and " Placentalia ".
- Huxley s system, in which The three subclasses are Prototheria, Metatheria, and Eutheria, rather than Monotremata, Marsupialia, and Placentalia.
- The function of this organ is probably to transfer nutrients from the mother; however the structure is small, compared to those of the Placentalia.
- Either because the last common ancestor of Placentalia was nocturnal and had no use for good color vision, or simply because it just so happened.