please help. "Cells are the what to all living things" theres a 2 word that would go there i need help the sentence will be like Cell are the to all living things. what are the 2 words???

Nucleic acid certain protein cell membranes certain carbohydrates

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?

Ascience research group is testing a new type of plant food. one trial is conducted in a controlled experiment. the data from the trial show that the plant that received the new food grew faster than the control plant. the group announces that the new plant food makes plants grow faster. what is the main weakness in this scientific claim?