Calcium because it is responsible for making our bones strong, thus allowing us to perform many activities.
The glottis is the opening between true vocal cords in the larynx, and the gullet is the throught or esophagus.
Answer is 256.
In 1992 the trout population was 4. Thus, initial population of trout is 4. In 1993 it grew to (4)², that is 4×4 = 16, in 1994 it grew (4)³, that is 4×4×4 = 64. This shows the trout has grown exponentially. Therefore, the trout population will be (4)⁴, that is 4×4×4×4 = 256.
