This feature of the dermal layer attach to hair follicles, contract to cause hair to stand A. Blood Vessels
B. Oil Glands
C. Hair Follicles
D. Muscle Fibers
E. Sweat Glands
F. Nerve Fibers
I will pick the brainiest answer! Thanks!

D

Explanation:

there's a muscle fiber called arrector pili muscle, a tiny muscle which is connected to the hair follicles and skin and when contracted it causes hair to stand also called goosebumps.

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.

chert is a sedimentary rock composed of microcrystalline or cryptocrystalline silica. with this little bit of information, you can come to the conclusion that your answer is c.  

explanation: