Question

Match the terms in column I with those in column II.

COLUMN I	COLUMN II
A.	Cocci	i.	True bacteria
B.	Eubacteria	ii.	Archaebacteria
C.	Chemoautotrophs	iii.	Spherical shape
D.	Halophite	iv.	Iron bacteria
		v.	Rod shaped

Answer 1

Hint: Bacterias are a type of biological cell . They are composed of a large domain of prokaryotic cells. They are microscopic , single celled organisms that can live on different types of organisms.

Complete answer:
 Bacteria are single celled organisms that can live in diverse kinds of environments and also both inside and outside of an organism. There are mainly different types of bacteria which are classified according to their shape and the type of cell wall they possess.
Cocci are spherical shaped bacteria. Examples of Cocci include Staphylococcus aureus.

Eubacteria are also called true bacteria. These are prokaryotic ( lacking nucleus) cells. Chemoautotrophs use inorganic energy sources which include hydrogen sulphide, elemental sulphur, molecular hydrogen and ammonia to get energy. Archaebacteria are generally single celled prokaryotic organisms. There are three groups of archaebacteria, such as methanogens, halophiles and thermophiles.
cocci are bacteria that are categorized based on their shapes into three classes: cocci (spherical shaped), bacillus (rod shaped) and spirochetes (spiral- shaped) cells. Eubacteria are characterized by a rigid cell wall and may be motile or nonmotile. Chemoautotrophs which are organisms that get energy by the oxidation of electron donors within their environments. Most chemoautotrophs are generally extremophile bacteria or also called as archaea that can live in hostile environments and are primary producers of the ecosystems. A halophyte is a salt tolerant plant which grows in soil or waters of high salt concentration and comes into contact with saline water through its root or by salt spray.

Hence, the correct answer is option (A)

Note: Some bacterias are harmful but most of them have a useful purpose. They can support many forms of life. They are also used in industrial and medicinal purposes also. They are thought to be the first organism on the earth.