Question

Which microorganism do not have regular shape

bacteria
viruses
protozoa
fungus​

Answer 1

Answer:

Explanation:

Cell wall is a protective layer outside the plasma membrane. It is a characteristic feature of plants, bacteria, Cyanobacteria, fungi. It provides protection, strength and shape to the cell. Mycoplasma are the smallest bacteria. They lack the cell wall around their cellular membrane. Due to lack of cell wall, they do not have any specific shape.  

Thus, the correct answer is 'Mycoplasmas.'

Answer 2

Answer:

Explanation:

Staphylococci are irregular (grape-like) clusters of cocci (e.g. Staphylococcus aureus). Tetrads are clusters of four cocci arranged within the same plane (e.g. Micrococcus sp.). Sarcina is a genus of bacteria that are found in cuboidal arrangements of eight cocci (e.g. Sarcina ventriculi).