How does the body monitor its core temperature?
a. nerve cells in the skin feed the information to the hypothalamus.
b. the pituitary gland in the brain tracks the temperature of the blood.
c. nerve cells monitor the temperature of the hypothalamus.
d. core blood temperature alters the speed of the chemical reactions in the pituitary gland.
e. core blood temperature alters the speed of nerve cells in the hypothalamus.

80 points pls brainliest 1. what does a red shift mean? blue shift? 2. describe the big bang theory. according to this theory, how old is the universe? 3. scientists believe the universe is expanding. what is the evidence that supports this? 4. describe a nebula. 5. describe the 3 types of galaxies. what is a barred spiral galaxy? 6. what is a light year? how far is alpha centauri from earth? 7. describe the universal law of gravitation. be sure to include gravitational force between two objects. 8. describe the planets’ orbits around the sun. 9. what is the asteroid belt? where is it located? 10. describe rotation and revolution of earth. what determines an earth day and year? 11. how do galaxies exist? 12. compare and contrast the inner and outer planets. 13. what causes the seasons?