You water three sunflower plants with salt water. Each plant receives a different concentration of salt solutions. A fourth plant receives pure water. After a two-week period, the height is measured. i think the indepent variable is sunflower ... variable is height measured and the control variable is the fourth plant.
It is not a combination of innate and learned behavior, because the the person is naturally the way he/she is. Human behavior can be common, unusual, acceptable, or unacceptable. Humans evaluate the acceptability of behavior using social norms.
Mitochondria, cell membrane, and vacules
Answer:
Xylem carries water and minerals from the roots to the leaves. Whereas, phloem carries the food prepared by the leaves to different parts of the plant.
Explanation:
