How is natural selection related to sexual reproduction as opposed to asexual reproduction?
a) sexual reproduction results in many new gene combinations, some of which will lead to differential reproduction.
b) sexual reproduction results in the most appropriate and healthiest balance of two sexes in the population.
c) sexual reproduction results in the greatest number of new mutations.
d) sexual reproduction allows the greatest number of offspring to be produced.
e) sexual reproduction utilizes far less energy than asexual reproduction.

What have we learned from fossil evidence about evolution? a) it is an abrupt change. b)the process is observable. c) it takes place during one lifetime only. d)the most complex traits are always selected.

If a robot fixed another robot is it a engineer or doctor?

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?