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Wood first appeared in plants called progymnosperms.
Diphtheria. The bacteria that cause this disease, called Corynebacterium diphtheriae, proliferate in
Herniated disk. A herniated disk is a protrusion of the disk’s gelatinous center, called the nucleus
Steel-toed shoes are a worthwhile investment to help prevent foot injury due to falling objects. ...
Cystic fibrosis is caused by a mutation in a protein called CFTR
A square matrix P is called a permutation matrix if each row and column of P contains exactly ...