Plants contain xylem and phloem tissue. What organ system in animals
performs a similar function as the xylem and phloem of plants?

Which is not a likely outcome after extensive irrigation of dry farmland? useless, unproductive soil salinization of the soil depletion of groundwater nutrient-rich soil

Which substance contains thylakoids? a) nadph b)atp c)stroma d)chloroplast

According to the article, what valid claim came from the national research council? there is no association between fluoride exposure and increased cancer risk in humans. there is a possible link between fluoride exposure and increased cancer risk in humans. there is a definite link between fluoride exposure and increased cancer risk in humans.