Question

pick the odd one out and justify your choice by giving reason
1.funaria, spirogyra,pinus,marsilea
​2. sea urchin, pila,feather stars,sea cucumber

Answer 1

1. The odd one out is Pinus.
Pinus is a member of Phanerogamae (Plants with seeds; sex organs visible). Funaria, Spirogyra and Marsilea are members of Cryptogamae (plants without seeds, sex organs invisible).
2. The odd one out is Pila.
Pila is a member of phylum Mollusca. Sea urchin, feather star, sea cucumber are members of phylum Echinodermata.