James was walking down the road when a large animal jumped out in front of him. James was startled and experienced a fast heart rate and heavy breathing. Which statement best describes James’s condition in such a situation? A. The adrenal gland secreted aldosterone, increasing sodium absorption, which increased the heart rate and breathing. B. The adrenal gland secreted epinephrine, increasing blood pressure, which increased the heart rate and breathing. C. The adrenal gland secreted androgens, stimulating calcium absorption, which increased the heart rate and breathing. D. The adrenal gland secreted cortisol, increasing glucose absorption, which increased the heart rate and breathing.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."