Bird vertebrate are

First vertebrates are

First vertebrates are

First vertebrates are

How many vertebrate are present in the vertebral column of man?

(a)Different between analogous and hmologos structures (b) Select and write analogous structures from the lost given below : (i)wings of butterfly and birds (ii) vertebrate hearts (iii) Tendrils of bougain villea and cucurbita (iv) Tubers of sweet potota and potato.

All vertebrates are chordates but all chordates are not vertebrates. Justify.