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Groups of mammals Associate the following statements with the appropriate group of mammals. Embryos nourished by a "long-lived" placenta Mammals that lay shelled eggs Possess a cloaca Many species live in Australia and South America Includes humans Possess embryos that use "short-lived" placentas Prototherians Metatherians Eutherians
Groups of mammals Associate the following statements with the appropriate group of mammals. Embryos nourished by a "long-lived" placenta Mammals that lay shelled eggs Possess a cloaca Many species live in Australia and South America Includes humans Possess embryos that use "short-lived" placentas Prototherians Metatherians Eutherians
Embryos nourishedby a "long-lived" placenta: EutheriansMammals that lay shelled eggs: PrototheriansPossess a cloaca: All three groups (Prototherians, Metatherians, and Eutherians)Many species live in Australia and South America: MetatheriansIncludes humans: EutheriansPossess embryos that use "short-lived" placentas: MetatheriansEutherians (placental mammals): Eutherian mammals haveembryos nourishedby a "long-lived" placenta, including humans. They are characterized by a highly developed placenta that provides a long-lasting connection between the mother and the developing embryo/fetus.Prototherians (egg-laying mammals):Prototherians, such as the platypus and echidna, are the only mammals that lay shelled eggs. They do not possess a placenta and their reproductive system is distinct from that of other mammals.Metatherians (marsupials): Metatherians, which include species like kangaroos, koalas, and opossums, do not have a long-lived placenta like eutherians. Instead, theypossess embryosthat use a "short-lived" placenta during a brief period of development. Many species of marsupials are found in Australia and South America.All three groups (Prototherians, Metatherians, and Eutherians)possess a cloaca,which is a common opening for the digestive, urinary, and reproductive tracts.Learn more aboutEmbryos nourishedhere :brainly.com/question/497409#SPJ11...