What prefix would you add to list us to mean separate or split using water

Agroup of students are walking in the park and one of them takes a picture of a pollen grain that is been blown by the wind what caption can the student use for this picture

Which of the following are causes of evolutionary change? 1)genetic drift 2) natural selection 3) gene flow 4)mutation

S, tall stems (t) is a dominant trait while short stems (t) is a recessive trait. in a field of 1000 sunflowers, 820 are tall plants and 180 are short. which statement best describes the genotype of the sunflowers in the field?