How do decomposers conserve mass?

a-they create new mass as old organisms die.

b-they recycle mass back into the ecosystem.

c-they destroy excess mass in the environment.

d-they concert mass into sunlight by photosynthesis.

Hemoglobin is the compound in red blood cells that carries oxygen to the body. the distribution of hemoglobin in women in g/dl of blood is approximately normally distributed with mean 14 and standard deviation 1. too little hemoglobin, and you're anemic. 2. too much, and (unless you live at high altitudes), you can have other problems.

Name one similarity and one difference between the morphology of a brachiopod and a bivalve

Whats one way that rocks do not follow the typical rock cycle pathway?