The answer is D since this is a biography paragraph. it tells you the story of a person’s life. hope it helps!! <3
During photosynthesis, plants take in carbon dioxide and create oxygen, which is what humans breath. So, when the human breaths in the oxygen, in the process of cellular respiration, we create carbon dioxide and it goes in a cycle.
villi is the pleural of villus and villus refers to the finger or thread like projections of specific membranous structures often serving in the capacity of increasing surface area and to facilitate the passage of fluids or nutrients
