In: Biology
Name at least 7 detailed ways placental mammals are better than marsupial mammals.
ANS-
PLACENTAL MaMMALS | MARSUPIAL MAMMALS |
These are the mammals that have skin covered by hairs and feed their offsprings by milk that secreted from their mammary gland. | These are the mammals having pouch attach to their body of females to rear the young. |
Their placenta is well defined. | Their placenta looks like a yolk sac, through which a baby is attached but for a short time duration. |
Their babies are well defined. | There baby born blind and do not have ears or back legs at the time of birth, but while growing they develop all these features -they can see, have ears and back legs developed. |
They feed their baby, by milk produced from the mammary glands that they have in their body. | They have a pouch to carry their young. |
Lactation period is about several months | The lactation period is about much more than placental mammals. |
The number of teeth is less. | Number of teeth is high |
Body temperature is about 38- 30 degrees celsius. | Body temperature is about 35 degrees celsius. |
They possess a high metabolic rate. | They possess a low metabolic rate. |