First to answer will mark brainliest
a scientist is studying two traits on a fruit fly. she discovers that these are most often inherited together.

what can be said about these traits?

1. they are on the same chromosome and are influenced by epistasis.

2. they are on the same chromosome and are linked together.

3. they are on different chromosomes, and each trait is controlled by many genes.

4. they are on different chromosomes and are linked together.

choose from the answers above !

Acid rain is the direct result of acid released by burning fossil fuels. select the best answer from the choices provided ot o f true or false

80 points pls brainliest 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?

What are antigens and antibodies? how are they involved in the body’s response to incompatible blood?