Which statement describes gravity? Select three options. There is no defined unit of measurement for gravity. Gravity is the force that pulls objects toward Earth’s center. Objects that have a small mass will have no gravitational pull. Gravitational pull between two objects increases as the mass of one increases. Gravitational pull decreases when the distance between two objects increases.

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.

Which body region are part of the cephalic region?

What is the difference between topsoil and clay?