Root hair 3
The root hair was viewed at a magnification of x50
The image length of the root hair X-Y is 43 mm

Calculate the real length of the root hair in micrometres (um).

Indica el nombre y la fucion de los vasos sanguineos que entran y salen de los riñones

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?

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.