Which of the following sentences are the best short summary for a flashlight?A A flashlight flashlight has has many many uses. uses. A A flashlight flashlight is is able able to to create create light light energy, energy, which which allows allows us us to to see see in in the the dark. dark. A A flashlight flashlight is is a a necessary necessary tool tool for for every every household. household. A A flashlight flashlight is is a a portable, portable, battery-battery-operated operated device device that that makes makes light. light.

What type of cell is produced after fertilization occurs and the gametes combines ?

What are the fixed alleles in the human species? o a. the alleles that are on the most chromosomes b. the alleles that change most often 000 c. the alleles that no one has d. the alleles that everyone has

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?