Which scenario represents a scientific investigation?

- a measurement of growth patterns of crystals in space
- a selection of favorite songs in a survey
- a questionnaire on the quality of care in a hospital
-a survey on the best options for reducing air pollution

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)

The pelican's beak is adapted for in .

In an hydrogen ion pump the energy is used to join small molecules together to make larger ones which factor most likely has the greatest effect on the number of molecules mitochondria can produce