In humans, the vermiform appendix is a small, finger-sized structure, found at the end of our small caecum and located near the beginning of the large intestine or at the junction of large and small intestine.

Correct Option: A

In humans, the vermiform appendix is a small, finger-sized structure, found at the end of our small caecum and located near the beginning of the large intestine or at the junction of large and small intestine.

The gall bladder is a small sac and is the storage depot for bile. Bile is only concentrated in the gall bladder.

Correct Option: C

`The gall bladder is a small sac and is the storage depot for bile. Bile is only concentrated in the gall bladder.

In butterflies the sex determination is based on ZW system as they lack the sex chromosomes.

Correct Option: C

In butterflies the sex determination is based on ZW system as they lack the sex chromosomes.

The nilgai (Boselaphus tragocamelus), is the largest Asian antelope. It belongs to the family Bovidae, to which cow (Bos sp.) also belonged.

Correct Option: A

The nilgai (Boselaphus tragocamelus), is the largest Asian antelope. It belongs to the family Bovidae, to which cow (Bos sp.) also belonged.

In 1892 Dmiti Ivanovsky in his article described of a non-bacterial pathogen infecting tobacco plants. Later the tobacco mosaic virus got discovered (first virus to be discovered) by Martinus Beijerinck in 1898. Since then about 5,000 viruses have been described in detail.

Correct Option: B

In 1892 Dmiti Ivanovsky in his article described of a non-bacterial pathogen infecting tobacco plants. Later the tobacco mosaic virus got discovered (first virus to be discovered) by Martinus Beijerinck in 1898. Since then about 5,000 viruses have been described in detail.