A) Consider the following claims.
Inherited genetic variations are caused by genetics only. They are caused by crossing
over and assortment in the development of sex cells in meiosis. The random joining
of sex cells can also be a source of genetic variation. Mutations also cause variations
in genetic sequences. Mutations are always harmful. II
Inherited genetic variations are caused and influenced by environmental factors only.
Factors like an organism's habitat conditions and behavior can affect variation within
a population
b) Think about what these claims are saying. Determine if you support these claims. If you
support these claims, do you support the totality of the claims or just parts of the claims?

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?