Carbon (C)
Atomic #: 6
Atomic Mass: 12

Question:  Calculate the number of electrons using the information given. Write the number on the line and then draw the electrons into the Bohr model.

Assuming the atom has a neutral charge, the number of electrons will be the same as the number of protons.  The number of protons is given by the atomic number, 6, so there are six electrons.

The first "ring" of the atom (closest to the center) can take two electrons, so draw two electrons there.  The second (outer) "ring" of the atom can take the remaining electrons, so draw four electrons there.

Atomic mass is irrelevant in this specific problem.

protein synthesis is an example of feedback mechanism which in homeostasis

i am going to guess that it is co2.