HELP ME ASAP Select the correct answer.
Which biogeochemical cycle includes the exoskeleton and shells of marine organisms as a reservoir?
A.
carbon
B.
nitrogen
C.
sulfur
D.
oxygen

The nutrient cycle is the biogeochemical cycle that includes the exoskeleton and shells of marine organisms as a reservoir. This cycle involves the exchange of organic and inorganic matter back to the living production of matter. The decomposition of the exoskeleton and shells of marine organisms will give nutrients which will be used in this cycle.

Explanation:

None of your answers align with the question but I'll take an educated guess and say that it is D. Oxygen

tissue

explanation:

it is actually formed by geoup of cells which is tissue

endo:

regulates body hormones, aldosterone, vasopressin

neural:

signal, regulates body using electric signals, reflex

endo has to do with hormones; aldosterone and vasopressin are both hormones. i also had this question and got it right : d