A scientist studied the formation of the protein hemoglobin and made a chart to show the steps in the process. Arrange the labels to complete the steps for the formation of hemoglobin. mRNA travels to a ribosome where its codons will be "read" amino acids released by tRNA form peptide bonds DNA molecule is "unzipped" in nucleus RNA polymerase is used to build a mRNA molecule

Will mark brainliest if correct/available! which of the following statements is true? all plants need flowers to sexually reproduce. sexually reproduced offspring are identical to their parents. fertilization always occurs inside the female's body. a body cell has twice the number of chromosomes as an egg cell.

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?

Why do the circulatory systems of land vertebrates have separate circuits to the lungs and to the rest of the body?