Biology, 14.10.2019 13:10 adriannabrooks18
Agraduate student once claimed that ancient plates moved at a rate of 16 cm/year. if the current plates move 4 cm/year on average, what is the ratio of the distance covered by the ancient plates to the current plates, in the same time span? a) 1/4 b) 3/1 eliminate c) 1/3 d) 4/1
Answers: 2
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?
Answers: 1
Biology, 22.06.2019 13:00
This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient
Answers: 1
Biology, 22.06.2019 14:50
Read this summary of a scientific theory: "cells are the most basic structural and functional units of life. all living organisms are made up of one or more cells. all cells that are alive in the world today came from pre-existing cells." which of the following would require this theory to be modified? -a.) a survey finds that a majority of people believe viruses carry out the basic processes of life. -b.) a prominent scientist says she feels strongly that one day the theory will be challenged by life on other planets. -c.) the dna of unicellular and multi-cellular organisms is shown to have many fundamental similarities. -d.) scientific observations show that microscopic organisms living in the deep ocean are not made up of cells.
Answers: 1
Biology, 22.06.2019 15:10
When energy is used, atp molecules convert to adp molecules. this process is called
Answers: 1
Agraduate student once claimed that ancient plates moved at a rate of 16 cm/year. if the current pla...
Mathematics, 05.11.2020 04:00
Mathematics, 05.11.2020 04:00
Biology, 05.11.2020 04:00
Mathematics, 05.11.2020 04:00
Mathematics, 05.11.2020 04:00
Mathematics, 05.11.2020 04:00
Mathematics, 05.11.2020 04:00
Geography, 05.11.2020 04:00
History, 05.11.2020 04:00
Mathematics, 05.11.2020 04:00
Social Studies, 05.11.2020 04:00
Biology, 05.11.2020 04:00