Answer:
d. limbic system
Explanation:
The limbic system is concerned with the major role to handle fear, pleasure, emotion, and hormonal production. The limbic system are associated with the task of regulating the production of internal secretions that are transported around the body by the bloodstream in regards to emotional signals, they also re-enforce behavior associated with fear and pleasure.
You subtract the number of protons and the mass to get the number of neutrons.
The most massive part of the atom is the NUCLEUS which has a POSITIVE charge.
(That's why we have electrons to balance the charge)
I hope this helps!
Answer:
returns to the left heart, completing the pulmonary cycle
Explanation:
