Byron works at a copy center. He made thousands of copies for three companies. He thinks he may have printed them on the wrong paper. He looks at the top 20 copies to see which type of paper he used. His sample is biased. How could he modify the sample to eliminate bias?

Which events are likely to be catastrophic to an ecosystem? select the three correct answers. a-hurricane. b-steady population growth. c-seasonal flooding. d-introducing of an aggressive invasive species. e-tsunami.

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)

Coral have a symbiotic relationship with what in order to eat?