Why does secondary consumers cannot digest the bones of their prey

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.

What is the importantence of the carbon and nitretan cycles in the environment

Paint and solvents pose no potential hazard to human health. select the best answer from the choices provided t f