Words similar to necessary

Example sentences for: necessary

How can you use “necessary” in a sentence? Here are some example sentences to help you improve your vocabulary:

Although its role has remained controversial, it is involved in the increase of immediate early genes such as c-myc [ 63 ] , which is upstream of cyclin D synthesis and necessary for cell division [ 64 ] . In humans, ProTα is coded by a gene family of six members.
All these attractions can be bridled, but the amount and nature of the necessary effort differs by food type and by circumstance.
1% were prescribed from the WHO Essential drug list [ 9 ] . The Manipal Teaching Hospital is a tertiary care provider in the Pokhara valley and due to various reasons it is sometimes necessary to use antibiotics which may not be covered in the Essential drug lists.
Personnel collecting effluent samples and conducting toxicity tests should take all safety precautions necessary for the prevention of bodily injury and illness which might result from ingestion or invasion of infectious agents, inhalation or absorption of corrosive or toxic substances through skin contact, and asphyxiation due to a lack of oxygen or the presence of noxious gases.
Most of the labor is necessary for the construction of the facility.