How do scientists know dark matter exists? It gives off dark energy.

It causes temperature
increases in areas where it exists.

it causes a greater red shift than ordinary matter.

It creates gravitational effects that can be measured.

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)