Words similar to required

Example sentences for: required

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

Because BMP-6 can prevent FSH action [ 12 ] , the rapid loss of BMP-6 expression may be required for FSH to exert its crucial functions during DF-development.
In C. elegans , it was reported that the homeobox gene, lim-6, is required for distinct chemosensory representations (ion sensing), which is related to ion channel/transportation mechanisms.
Enclosed is our assessment of the EPA's compliance with the procedural steps required by section 801(a)(1)(B)(i) through (iv) of title 5 with respect to the rule.
A little imagination may be all that is required in the minstrelly mode to discern the poetic connection.
Earth's balance was thrown off, and a massive migration was required to regain planetary equanimity.