The fertilisation is_____and development is______in sponges.

Fill in the blanks In sponges, fertilisation is a_____ and development is b_____having a larval stage which is morphologically c______from the adult.

The unit of resistance in esu is_____and emu is_____.

In earthworm, fertilisation and development occurs within

The given diagram depicts fertilisation and development of which of the following types ?

Fertilisation and development in hemichordates are respectively

After fertilisation, the ovules develop into (a)____ and the ovary matures into a (b)_____

After fertilisation, the ovules develop into (a)____ and the ovary matures into a (b)_____