Which elements have one valence electrons?

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

Approximately what wavelength of light is best absorbed by chlorophyll a

The smallest parts of these that retain their original properties are called