3. Use the list below to write the correct term for each definition below.

adaptation
extinct
gene
Darwin
fittest
mutation
evolution
fossils
natural selection

a. A change in genes that causes a change in a particular trait
b. Describes a species that no longer has any living representatives

c. A trait that a species develops over generations which helps it to survive

d. a unit of DNA that
determines a specific trait in the organism

e. The survival of organisms best fit for the environment

f. Changes in living things over time

g. Remains of organisms that lived in the past

h. Best suited to survive in its environment

L. The biologist who developed and offered evidence of the theory of Natural selection

The first generation of offspring from the cross of two parents is called the a.f1 generation b.f2 generation c.short generation d.p generation

Suppose you could go back in time to interview henri becquerel on the day he discovered radioactivity. from his perspective, write an account of the discovery.

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?