Ms. brown assigned a research project to her science students. the first step: decide on a problem and develop a research question. sam decided on the following question: do aliens live on earth? ms. brown told sam that his question and in general, his topic, were not suitable for a research project. ms. brown suggested to sam that his topic was not suitable because he could not collect data or any that aliens actually lived on earth. what is the best term to fill in the blank from the choices below? a) evidence b) photographs c) proof d) testimony

Select the correct answer.which scenario describes unethical lab behavior? o a. danny stores the chemicals required for his experiment in flasks and beakers.b.anna publishes the results of her experiment on the growth rate of saplings.c.jason repeatedly runs an experiment until he gets the results he desires.d. mia records her observations of an experiment precisely and accurately.

The third stage of cellular respiration is (2 points)

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?