How can allel frequnices change from one gerneration to the next?

Which of these statements are true about scientific theories and hypothesis

1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?

Fungi are classified into how many groups? a. 1 group b. 2 groups c. 3 groups d. 4 groups