What is the difference between osmosis and diffusion? a. diffusion is the movement of molecules from an area of low concentration to an area of low concentration. osmosis is the opposite. b. osmosis the movement of molecules from an area of low concentration to an area of low concentration. diffusion is the opposite. c. osmosis is the movement of water across the membrane; diffusion is the movement of molecules from a higher to a lower concentration. with or without the presence of a membrane. d. diffusion is the movement of water across the membrane; osmosis is the movement of molecules from a higher to a lower concentration. with or without the presence of a membrane. answer asap!

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?

If a checkpoint detects damaged dna, the checkpoint may

Aresearcher created three groups based on participants bmi: normal weight, overweight and obese. the hypothesis being tested is that the three groups differ in the mean number of artificially sweetened drinks consumed weekly. which statistical test might the researcher use, assuming a reasonably normal distribution of values.