SOMEONE PLEASE HELP ILL GIVE 20 POINTSZ!​

Alaska and northern canada have a diet rich in vitamin d and their skin color is darker than predicted on the basis of iv intensity at their latitude. explain the observation:

Jason, a dog breeder, decides to mate a poodle with a golden labrador retriever. he wants to get puppies with the curly hair of the poodle and the color of the labrador. what concept is shown in this example? question 6 options: artificial selection adaptation evolution natural selection

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