Cells needs to bring in molecules to carry out cellular processe. often this required moving the molecules across the cell membrane against the cocentration gradient passive transport by diffusion
active transport using ATP

Which units ate used to measure both velocity and speed? check all that apply

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?

What is a limitation of using a chemical formula, such as c6h1206, to represent a compound? the chemical formula does not show the types of elements that make up the compound. the chemical formula does not show how the atoms are connected to one another the chemical formula does not show the number of atoms of each element in a molecule. the chemical formula does not show the chemical symbols of the elements in the compound