An experiment was carried out to find out how the mass of potato chips changed when they were left in sugar solutions of different lengths. Which of the following should have been kept the same throughout this experiment ?

Explain how scientists use geologic time to determine the age of landforms.

At which point is crust neither created nor destroyed? island chain mid-ocean ridge divergent boundary transform boundary

How do the sperm cells get from the stigma to the ovules? a. they slide down the petals to the bottom of the flower. b. they travel through pollen tubes. c. they travel along filaments. d. insects carry the sperm cells from the stigma to the ovules.