Which of the following statements about the nucleus is true? a. the nucleus is the site of protein assembly. b. the nucleus is surrounded by cell membrane that lets materials in and out. c. the nucleus stores the coded instructions for making the cell’s proteins. d. the nucleus usually contains a nucleolus region which is where mitochondria assembly begins.

Which of the following statements are true chromosomes make up genes

Which component in a graph indicates an independent factor? a. y-axis b. x-axis c. scale

Me 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?