URINARY SYSTEM AND MALE FEMALE REPRODUCTIVE SYSTEMS
PLACENTA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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monotremes
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marsupials
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placentals
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None of the above
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Detailed explanation-1: -Placental mammals are a rather diverse group, with nearly 4000 described species, mostly rodents and bats (photos at left). The placental mammals include such diverse forms as whales, elephants, shrews, and armadillos.
Detailed explanation-2: -Bats and Flying Foxes are similar to humans in that they are placental mammals. This means that they do not have pouches like marsupials and give birth to well developed young (pups). The young hang on to their mother with their mouth wings and feet while Mum supports them with her wing.
Detailed explanation-3: -Placental mammals are found on all continents, in the air, and in the seas. Primates, cats, dogs, bears, hoofed animals, rodents, bats, seals, dolphins, and whales are among the dominant placental mammal groups today. Nearly 94% of all mammal species now are placental mammals (5, 080 species out of 5, 416).