How do you scientist know that the universe is expanding

a the doppler effect shows stars with yellow shifted light
b the doppler. effect shows stars with blue light
c the doppler. effect shows stars with red shifted light
d the doppler effect shows stars with green light

What is the first step in a life cycle of a plant reproduce sexually

Anne, an intern in a microbiology lab, was observing the characteristics of various specimens of protists. match each specimen to the category of protist to which it belongs.

1. in a certain species of plant, the color purple (p) is dominant to the color white (p). according the punnett square, what is the probability of and offspring being white? 50%25%0%100% 2. in a certain species of plant, the color purple (p) is dominant to the color white (p). according the punnett square, what is the probability of and offspring being white? 0%100%50%25%(picture 1 is for question 1, and picture 2 is for question 2)