Given the nucleotide sequences below, what type of mutation has occurred?

Before: A C C G T A T G T C A T

After: A C C G T A A G T C A T

A) deletion

B) insertion

C) mixer

D) substitution

It makes up an community

the glands which are associated with each description is given below:

pancreas - is an endocrine and exocrine gland that secretes juices with enzymes for digestion. salivary glands- with protection and digestion in the mouth. liver- secretes bile for digestion.   lachrymal glands - secrete tears to moisten eyes and protect them from particles and infection.   sweat gland -regulates water, salt, and temperature. oil glands - to form a protective barrier on the skin.   goblet cells - secrete mucus for protection.

I'm soooo sorry but i can't answer but you can ask another professor