How do cells tissues organs and organ systems work together in a multicellular organism

Apassenger walks toward the rear of a moving train. describe her motion as seen from a reference point on the train. then describe it from a reference point on the ground

Using gravity, an elephant can pull a mouse towards it from the ground. true or false explain why. will give brainliest if answered fast and the best explanation

Which form of cell division creates the sperm and egg, resulting in half of the chromosomes as the other cells?