Please explain what it means when we say photosynthesis and respiration are a cycle. You need to use the reactants (what is needed) and products (what is being made) to explain your answer. Include the organelles involved. You could also discuss how photosynthesis and respiration are involved in keeping your body active. Please write 5 sentences minimum to include all required information. 5 sentences minimum:

1.products/reactants Photosynthesis
2.Products/reactanats Respiration
3.Organelle-Photosynthesis
4.Organelle-Respiration
5.What does it mean when we say photosynthesis and respiration are a cycle
PLS HELP ME

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?