As Earth orbits the Sun, this same principle is used by astronomers to determine the distance to nearby stars. ... Parallax is the first "inch" on the yardstick with which astronomers measure distances even further to objects.
First, he should measure how long it takes for the liquid to become clear if X and Y are mixed together. Then, he should measure how long it takes if he also adds substance A to X and Y. He will find out if substance A is a catalyst. hope this helps :)
Answer:
Fibers and the Ground Substance make the extracellular matrix...
Explanation:
Connective tissue is composed of fibers, cells and the ground substance that gave the it the overall physical appearance. Chemically, the extracellular matrix is made up of minerals, water, Proteoglycans and a large network of fibrous protiens. All of these help connective tissue to maintain the structure.
The division of the peripheral nervous system is responsible for physiological symptoms such as increased heart rate and butterflies in the stomach is sympathetic!
Hope I helped! :)
