Question

The reptilian character observed in $Archaeopteryx$
A.Vertebral column extends up to the tail
B.Presence of feathered wings
C.Presence of beak
D.Streamlined body

Answer 1

Hint: Archaeopteryx is considered the connecting link between reptiles and birds.
It shows characters of both reptiles and birds.

Complete step by step answer:
The avian characters that are exhibited by the Archaeopteryx includes:
1.Presence of body feather
2.Modification of forelimbs in to feathered wings
3.Presence of beak
4.Streamlined body
5.V-shaped furcula
6.Bird like girdle and limb bones
The reptilian characters include:
1.Presence of jawed teeth
2.Presence of clawed fingers
3.Sternum without keel
4.Long tail with free caudal vertebrae
The presence of the vertebral column in the tail region is a character that is seen in reptiles.

Hence the correct option is ‘A’.

Additional information: Archaeopteryx is an early prehistoric bird. It lived about 150 million years ago in the Jurassic period. Its fossil skeleton was discovered in the Solnhofen limestone deposits in Southern Germany.

Note:
All the options given are characteristic features of Archaeopteryx. The only reptilian feature is the vertebral column extending up to the tail. All other options are avian characteristics.