Categorize the following:
Answer variants:
Homologous structure
Atavism
Vestigial organ
Analogous structure
 
S.No
Picture
Classification
1.
800px-Human_Hand.jpg
2.
800px-Bat-wing_underside.jpg
3.
DesigningBioDivya23w937 (2).png
4.
TubalPregnancywithembryo.jpg