Biology, 30.11.2020 22:50 sophialoperx
Can someone please help me? I don’t really understand this so could you explain?
Answers: 1
Biology, 20.06.2019 18:02
If many different species live in an ecosystem, this the ecosystem to fill its a. populations b. niches c. producers d. communities
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Biology, 21.06.2019 20:00
Which medullary index indicates a human hair? a. 0.653 b. 0.733 c. 0.516 d. 0.256
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Biology, 22.06.2019 10:00
Which substance contains thylakoids? a) nadph b)atp c)stroma d)chloroplast
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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?
Answers: 1
Can someone please help me? I don’t really understand this so could you explain?
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