Which term refers to the tearing of ligaments surrounding a joint?
a. cramp
b. spasm
c. sprain
d. strain

C) Sprain

Explanation:

A sprain is a tear or twist the ligaments of (an ankle, wrist, or other joint) violently so as to cause pain and swelling but not dislocation.

image result for describe the various types of gene mutationsghr.nlm.nih.gov

the types of mutations include: missense mutation: this type of mutation is a change in one dna base pair that results in the substitution of one amino acid for another in the protein made by a gene. nonsense mutation: a nonsense mutation is also a change in one dna base pair.

explanation:

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.