(Please hurry; 100 points) What is the relationship between ribosomes and rough endoplasmic reticulum (ER)?

Rough ER produces the polypeptide chains that ribosomes need to make protein.
Rough ER is the subunit of ribosomes that makes proteins
Ribosomes attached to rough ER make proteins that the rough ER then transports around the cell
Ribosomes transport proteins made by rough ER to the Golgi apparatus.

Explain why the plants cortex would serve as the best food source for animals

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?

Ascientific idea becomes valid when it is what?