How do some bacteria carry out nitrification? What are such bacteria called?

How do animals carry out control and coordination?

How do plants carry out control and co-ordination?

Spherical form of bacteria are called as

Do only the Clostridium bacteria cause illness?

The number of bacteria in a culture doubles every hour. If there were 50 bacteria originally in a culture, how many bacteria will be there at the end of 5th hour?

How is pollination carried out in water plants?

Answer the following Read the paragraph and answer the questions given below it. Food poisoning can occur due to contamination of food by various bacteria and fungi.Clostridia are bacteria responsible for spoilage of cooked food. There are around 100 species of this bacteria viz. Clostridium tetani, Clostridium botulinum, etc. that are present either free living in soil or the alimentary canal of humans and other animals. The bacteria are rod- shaped and produce pottle-shaped endospores in adverse environmental conditions. These microbes cannot withstand normal oxygen levels in air and grow under anaerobic conditions. Do you know about any rod-shaped, anaerobic micro-organism that is useful to humans?

Answer the following Read the paragraph and answer the questions given below it. Food poisoning can occur due to contamination of food by various bacteria and fungi.Clostridia are bacteria responsible for spoilage of cooked food. There are around 100 species of this bacteria viz. Clostridium tetani, Clostridium botulinum, etc. that are present either free living in soil or the alimentary canal of humans and other animals. The bacteria are rod- shaped and produce pottle-shaped endospores in adverse environmental conditions. These microbes cannot withstand normal oxygen levels in air and grow under anaerobic conditions. How does Clostridium survive even under adverse conditions?

A virus is considered as a living organisms and an obligate parasite when inside a host cell. But virus is not classified along with bacteria or fungi. What are the characters of virus that are similar to non-living objects?