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Biology, 22.06.2019 09:40
80 points pls 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?
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Biology, 22.06.2019 20:30
Explain the difference between mutations in sex cell and those in somatic cells
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Biology, 23.06.2019 00:10
Which organelle in a eukaryotic cell is most noticeable under a microscope? nucleus nucleolus ribosome nuclear envelope
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Biology, 23.06.2019 00:30
Compare using dna matching in forensic science to hitting a target with a gun. dna analysis would be most similar to which scenario"
Answers: 2
Calcium (Ca) is in the same group as Mg. Explain
how Ca will react. Select the most appropriate wor...
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