A decomposição é um processo natural feito com ajuda de bactérias e fungos e é responsável por "estragar" os alimentos. Apesar disso ela é muito importante para manter a vida em nosso planeta porque Alternativas A) devolve os nutrientes ao ambiente. B) facilita a digestão dos alimentos. C) elimina os microrganismos nocivos. D) contamina a natureza.

This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.

Which of the following molecules could pass through the plasma membrane by simple diffusion? a. na+ ions b. glucose c. amino acids d. carbon dioxide

If a young male's body is just beginning the process of producing sperm, when is it likely that he would ejaculate mature, viable sperm"