In each set of terms given below, there is an odd one and cannot be grouped in the same category to which the other three belong. Identify the odd terms in each set and name the category to which the remaining three belong.
Example: Eye, Ear, Nose, Lungs
Odd term: Lungs
Category: Sense organs
i. Malleus, Iris, Incus, Stapes
ii. Amoeba, Euglena, Bacteria, Paramoecium
iii. Snake, Fish, Earthworm, Bird
iv. Squamous, Muscular, Columnar, Cuboidal
v. Pitcher plant, Rose plant, Venus fly trap, Sundew

Explanation

The selfing of `F_1` generation - TtRr will yield following gametes -TR, Tr, tR, tr ​
The possible combinations of these gametes are given in the following Punnett square :