Which statement best describes a contribution that decomposers make to an
ecosystem?
A They reduce the atomic mass of carbon atoms.
B They increase the recycling of carbon-containing molecules.
C They reduce the total number of carbon atoms in the atmosphere.
D They increase the total number of carbon nuclei within the atoms.

Which of the following statements accurately defines epidermis? a. a thick protein fiber composed of the protein collagen b. hard, dense bone tissue found on the outer surface of a bone c. single layer of epithelial cells and the underlying basal lamina d. outer, protective layer of the skin composed of stratified squamous keratinized epithelial tissue