Longitudinal studies make comparisons over time, whereas cross-sectional studies make comparisons at a single point in time. hope that helps some
Your answer is D) studying the weather.
The Photosynthesis process is divided into two stages, light and dark stages. Glucose is always produced at the dark stage of the photosynthesis process. The light stage of the process occur during the day. In the light stage, the plant capture energy from the sun by the help of chlorophyll, the energy obtained in the day is used during the dark period to produce glucose.
The answer is; B
This hormone cases growth at internodes. Elongation at these points causes the plant to grow taller because of the long spaces between the stem nodes. The hormones are produced at meristems of apical buds and roots of plants. It is named after a fungus that infects plants causing them to grow too tall and fall over.
Auxins promote apical growth while cytokinins delay senescence in plants.