Biology, 22.10.2019 20:30 maribel3621
Use the diagram of the anatomy of the heart below to explain how and why deoxygenated blood is pumped to the lungs and is then returned to the heart were the blood now rich with oxygen is pumped throughout the body. make sure to include both atriums and ventricles of the heart in your answer.
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Biology, 22.06.2019 06:30
Explain how scientists use geologic time to determine the age of landforms.
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Biology, 22.06.2019 08:20
Wich level of organization includes all the other levels or organizations
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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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Use the diagram of the anatomy of the heart below to explain how and why deoxygenated blood is pumpe...
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