Question

Explain adaptive radiation? What is difference between marsupial and plasental

Answer 1

Answers:

A marsupial is a mammal that raises its newborn offspring inside an external pouch at the front or underside of their bodies. In contrast, a placental is a mammal that completes embryo development inside the mother, nourished by an organ called the placenta.

Answer 2

Explanation:

In simple words adaptive radiation is the spread of individuals from a population to other habitats near the original habitat. This phenomenon occurs due limitation in resources due to a large no. of individuals in a population. The radiated population then gets adapted to the habitat it spread to

(example: some individuals from a seed eating population travel to nearby island where only insects are available, then it gets adapted in order to prey on the insects)

adaptive radiation is more frequent in areas with large no. of small habitats.

difference between marsupial and placental mammal:

marsupial are the mammals which arose from the placental mammals by adaptive radiation which in and itself is a process of divergent evolution.

unlike placental mammals the marsupials give rise to young ones in an immature state and allow them develop inside the pouch which is outside of the body, whereas in the placental mammal the foetus completely inside the mother's womb.