(B) .$J$. Ivanowsky $(1892)$ recognized certain microbes as the causative organisms of the mosaic disease of tobacco.He demonstrated that these microb

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He recognized certain microbes as the causative organisms of the mosaic disease of tobacco.

(B) .$J$. Ivanowsky $(1892)$ recognized certain microbes as the causative organisms of the mosaic disease of tobacco.He demonstrated that these microbes were smaller than bacteria because they passed through bacteria-proof filters.His work laid the foundation for the discovery of viruses.

Class 11 Biology Biological Classification Viruses, Viroids, Prions and Lichens

Easy

What was the contribution of the scientist $D$.$J$. Ivanowsky $(1892)$?

A
He discovered the structure of bacteriophages.
B
He recognized certain microbes as the causative organisms of the mosaic disease of tobacco.
C
He demonstrated that viruses are crystalline in nature.
D
He proposed the five-kingdom classification system.