Las primeras células humanas que se cultivaron con éxito procedieron de un tumor maligno. ¿Cree usted que esto refleja sólo la disponibilidad de células cancerosas o que estas células son mejores para cultivo celular?, ¿por qué? Gente necesito su ayuda, hoy por mi mañana por ustedes.

Which of the following is a common response to cell signaling?

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?

Which soil would most likely be found in the arctic? andisols gelisols histosols spodosols