An object's average speed is found by dividing the total distance the object travels by the total А
mass of the object.
B
acceleration of the object.
specific gravity of the object.
D
time it takes to move that distance.

What is the problem in this article? what solution does the article propose?

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.

During convection, less dense fluid rises and denser fluid sinks.