Question

Can someone help me with these!!

Drag the characteristics given on the left into the appropriate infraclass. Note that some of the characteristics may belong in all three boxes. Ornithodelphia Eutheria Developed Young at Birth Pouch Mammary Glands Cloaca Large Cerebral Cortex Hair Metatheria Four- chambered Heart Premature Young at Birth Oviparous Placenta

Answer 1

Art Solution Hello, mammary The class Mammalia comes under thglem Chordata. The organisms belong to Mammalia posses many new characters like presence of hair presence gland etc . of man The mammalia dwided "ente 3 sublasses : Oknéthodelphia Eutheria Metatheria. In this question, some of the characters are shown. And awe have to place them in appropriate subilass. ماه هلايو Mammary glands o cloaca o Hair o Four chambered heart • Ovíparous. Eitheria • Developed young at o Mammary gland o large cerebral cortex heart Four chambered Placenta

Metatheria Pouch o Mammary gland o Hair y gland • Four chambered heart o Premature young at bath • Placenta, Omiethadelphia othese are egy laying mammals o they are also called as palasheria They contain a common spaúow opening called 'cloaca waste matery passage genital purpose and for removing alenals. ould mammals contain hairs in there body. o the heart of mammals are & chambered is left album, lejt ventile, suighe atrium and sightvertriele. JUUS hois Inc осфа50 here in the thermostate si penous because they lay egy eg - ehülnar

Metatheria sThese are pouched mammals • They contain mammary oland. But it is not so well developed as Eutheria 8 o the body covered with hair. contain & chambered heart they gave birth to young one before full development

and further development our cat foutside the mother's oThey possess placenta . But not well developed as Eutheria. The placenta helps to provide nutrients for developing foetus. Eg: - Kangaroo. Eutheria oThey are placental mammals. o they giving with to young ones as which are fully developed o their body covered with hair & they possess 4 chambared They possess large cexcbral cortex. othey contain placenta Eg :- humans, cat ete Thank you cheáort. y