Describe the process of sexual reproduction in sponges.

The sponges have a capability to reproduce sexually and asexually.

There are two things plays important role in sexual reproduction , obviously "male" and "female" spomges . so the male sponge , basically releases sperm into water . here the water acts as a "medium" . then , when it reaches female . When the male gamate and female gamate fuse , a larvae is formed which firther devalops into another sponge .

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.