Biology, 03.11.2019 23:31 morbidodyssey
Hakeem is testing the effects of sunlight on samples of soil. which of these actions would introduce confounding variables into hakeem’s experiment?
he tests a theory that’s already been established.
he tests multiple hypotheses at a time.
he uses identical specimens when completing multiple trials.
he adjusts the independent variable and records the effects.
he uses different types of soil in each of his samples.
Answers: 1
Biology, 22.06.2019 02:00, lisxramirez
The idea of spontaneous generation was disproved by in a experiment involving jars of meat
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Biology, 22.06.2019 09:40, OliTepley8032
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 13:50, njohns5327home
The law of states that traits are passed from parents to offspring independently of one another.. true or false
Answers: 1
Hakeem is testing the effects of sunlight on samples of soil. which of these actions would introduce...
Mathematics, 14.08.2019 08:20
Mathematics, 14.08.2019 08:20