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 18:00
This diagram shows how seed plants are grouped. which is the missing label? bryophytes angiosperms pteridophytes monocots
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Biology, 22.06.2019 21:20
Which allele is expressed in the first-generation offspring of parents that have two different traits? a. the segregated allele b. the true-breeding allele c. the recessive allele d. the dominant allele
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Biology, 22.06.2019 22:30
True or false: the breakup of pangea resulted in warm wet global climates?
Answers: 2
While human cells have a number of mechanisms to repair damaged dna, these mechanisms are not perfec...
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