The substitution, addition, or removal of a single nucleotide in dna is called a(n) mutation.
a)interstitial
b)normal
c)point
d)reference

Answer : The correct answer for the blank is -  C) point mutation.

Mutation can be described as the permanent change in the sequence of genetic material (that is DNA) of living organisms.

Point mutation corresponds to change in one nucleotide sequence of DNA.

There can be primarily three types of point mutation that is deletion (one nucleotide is deleted from the sequence), addition (a nucleotide is added), and substitution (a nucleotide is substituted by another nucleotide).

Thus, option C) is the right answer.

a chair, a bed, and a toothbrush

explanation:

i was told this before by a teacher, so yeah

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .