Give the technical terms for the following patterns of occurrence of bacteria

1. In pairs ……………
2. In long chains ……………
3. In clusters ……………

List the kinds of nutrition in bacteria.

Why do bacteria produce spores ?

Bacteria are no more classified as plants primarily because:

1. These are unicellular and prokaryotic
2. These are motile
3. Many of them are parasitic
4. They have no chlorophyll