Answers: 2
Biology, 22.06.2019 10:10
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?
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Biology, 22.06.2019 20:00
¿cómo demostraron los experimentos de griffith que un factor hereditario estaba involucrado en la transformación bacteriana?
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Biology, 22.06.2019 22:10
Select all the correct answers. for a claim about the natural world to be considered scientific, what attributes must it have? a). it must be open to modification if new evidence doesn't completely support it. b). it must be based on scientific observations that can be repeated in a controlled setting. c). it must be applicable to future events and occurrences. d). it must be consistent with only a small portion of relevant observations or data.
Answers: 2
Biology, 22.06.2019 23:00
What is the ratio of carbon hydrogen and oxygen in a carbohydrate?
Answers: 2
Which phrase best describes a savana biome...
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English, 18.10.2019 13:10
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Mathematics, 18.10.2019 13:10
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Mathematics, 18.10.2019 13:10
English, 18.10.2019 13:10
Social Studies, 18.10.2019 13:10