The amount of matter in the earth system remains constant over time. the forms and locations of the matter stored within the system, however, change continually as it cycles through the earth.

matter can be transferred between which of the following elements of the earth system?
a.
from the physical environment to living organisms
b.
from one living organism to another living organism
c.
from living organisms to the physical environment
d.
all of these

Answer is option D i.e. All of these.

Explanation:

This can be very well explained with the help of the Carbon cycle. The carbon is present in all the living organisms as well as dead organisms. The atmosphere which is a physical environment contains various gases such as carbon dioxide, etc. This carbon dioxide is transferred to another living organism, say plants, in the process of photosynthesis. These plants are then eaten by animals, thus here, the matter is being transferred from one living organism to another. Again, the matter from these animals either in the form of waste or dead organisms gets transferred to the soil, which is again the part of the physical environment. Therefore, the correct answer to this is option D i.e. all of the above.

that is wrong, its not thymus.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.