Definitions / Explanation : Divergent evolution & Convergent evolution
Which of the following is richest in fossil?
How do we compute the age of a fossil ?
Choose the homologous organs from the givenoptions.
$(I)$ Vertebrate hearts.
$(II)$ Vertebrate brains
$(III)$ Thorn and tendrils of Bougainvillea andcucurbita respectively
$(IV)$ Vertebrate limbs.
The correct combination is