An example of a hierarchy of structure in animals (from more to less complex) is as follows: *
circulatory system --> vein --> capillary --> organelle
heart cell -> circulatory system -> heart --> heart muscle tissue
circulatory system --> heart --> capillary --> epithelial cell
heart --> heart muscle --> vena cava --> artery

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.

The tubes transporting minerals and water upward are called ?

Iwanna go do something with my ideas? ?