How does an epigenetic change differ from a mutation? a-mutations involve nucleotide sequences of only one or a few base pairs. an epigenetic change involves large regions of a chromosome, thousands of base pairs or more in length. b-mutations can be passed on to offspring or to daughter cells. epigenetic changes cannot be inherited. c-epigenetic changes occur due to environmental effects and only persist as long as the environment that induced them remains constant. mutations are permanent. d-a mutation alters the nucleotide sequence in dna. an epigenetic change does not alter the dna sequence, but can be inherited by daughter cells.

What would be the most likely result if the ph of the stomach were increased to 5

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form

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?