Which process is described by the characteristics below? • takes place in the mitochondria • releases chemical energy from sugars and other carbon-based molecules • makes atp (with oxygen present) a. cellular respiration b. glycolysis c. calvin cycle d. fermentation

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation

Immature bone cells, or osteoblasts, manufacture a protein called osteoid as well as several hormones. because of this, we would expect osteoblasts to contain numerous a) nuclei. b) ribosomes. c) lysosomes. d) golgi bodies.