EDGENUITY Which of the following cycles does not involve living organisms?

A. Carbon cycle
B. Oxygen cycle
C. Rock cycle
D. Nitrogen cycle

Asnail, elodea (aquatic plant), or both were added to the tubes and they were stoppered. tubes were placed under a grow light for 24 hours and the results recorded. the test tubes were then covered for 24 hours to produce a dark environment and the results recorded. which statement best explains the change in test tube d from the light setup to the dark setup.

Organisms are classified, or grouped into categories, based on similarities in their characteristics and/or evolutionary relationships. the study of how organisms are classified is known as

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks