I think from one organism
The skeletal muscle complex known as the triad consists of a terminal cisternae and two transverse tubule.
B. a terminal cisternae and two transverse tubule
A seed uses its stored food when it is growing.
Concerning the balance of pollutants in the biosphere, Scientists have proved that the natural system of the earth is overwhelmed by pollution.
How continents shift position on Earth's surface.<span>Set forth in 1912 by Alfred Wegener, a geophysicist and meteorologist, continental drift also explained why look-alike animal and plant fossils, and similar rock formations, are found on different continents. </span>
