Biology, 08.04.2021 01:40 1969976289
Why does a balloon filled with helium rise while a balloon filled with an equal volume of average atmospheric air does not?
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Biology, 22.06.2019 09:40
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?
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Biology, 22.06.2019 10:30
16. which of the following accurately describes a step within transcription? a. dna polymerase uses one strand of rna as a template to put together nucleotides. b. the dna strand is used as a template for which a complementary rna strand can be produced. c. the rna strand forms a template by which dna can be built. d. the rna strand is produced within the cytoplasm.
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Biology, 22.06.2019 12:30
Select the word from the list that best fits the definition the temperature to which air must cool to be saturated
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Biology, 22.06.2019 13:50
The law of states that traits are passed from parents to offspring independently of one another.. true or false
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Why does a balloon filled with helium rise while a balloon filled with an equal volume of average at...
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