How does the respiratory system interact with the circulatory system? a. the respiratory system transports oxygen and other nutrients to the heart for the circulatory system. b. the circulatory system transports nutrients and oxygen brought in by the respiratory system throughout the body. c. the respiratory system brings in carbon dioxide so the circulatory system can transport it throughout the body. d. the circulatory system removes oxygen and other nutrients from the body to make room for carbon dioxide in the respiratory system.

20 point pls brianliest 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?