Enzymes are biological molecules and are indeed found in all living organisms, including fungi, cyanobacteria, and algae. Viruses, however, are not considered living organisms and do not possess enzymes.
So, the correct option is (C): Virus
Each of the following characteristics represents a Kingdom proposed by Whittaker. Arrange the following in increasing order of complexity of body organization.
A. Multicellular heterotrophs with cell wall made of chitin.
B. Heterotrophs with tissue/organ/organ system level of body organization.
C. Prokaryotes with cell wall made of polysaccharides and amino acids.
D. Eukaryotic autotrophs with tissue/organ level of body organization.
E. Eukaryotes with cellular body organization.
Choose the correct answer from the options given below:
| List I | List II | ||
| A | Typhoid | I | Fungus | 
| B | Leishmaniasis | II | Nematode | 
| C | Ringworm | III | Protozoa | 
| D | Filariasis | IV | Bacteria | 
The output (Y) of the given logic implementation is similar to the output of an/a  …………. gate.
The process of grouping living organisms into categories is called biological classification. The most modern 5-kingdom classification was put ahead by an eminent scientist R.H.Whittaker. The five-kingdom classification is based on the criteria like cell structure, mode of nutrition, body form, and reproduction. One of the most important characteristics of this system is that it follows the evolutionary sequence of living organisms. The organisms are classified into distinct taxa or levels like Kingdom, Phylum, Division, Class, Order, Family, Genus, and Species. The 5 kingdoms are as follows:
