In a(n) like the kidney, several kinds of tissues work together. a. cell b. organ system c. organ d. tissue

The hypothesis of continental drift states that earth's continents, which are located on tectonic plates, move relative to each other. which of the following is true of the movement of the tectonic plates? a. tectonic plates only move once every million years. b. they move at a rate of approximately 5 centimeters per year. c. tectonic plates never move, only the continents located on them do. d. their movements are very rapid and occur at random times.

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

Tides that occur during the new and full moons