Biology students performed an experiment to determine the effect of light on the rate of photosynthesis. They chose pondweed, a photosynthetic water plant, and put it in a transparent beaker. They then positioned a desk lamp 10 cm away from the beaker, turned on the light and began to observe the beaker and count the number of bubbles that were produced. After ten minutes, they moved the lamp back 10 cm at a time until they had reached a distance of 50 cm. Use this information and Figure 2 to answer the questions below. It may also be helpful to refer to Figure 1 which illustrates the flow of energy and cycling of matter

Is becoming less expensive to screen blood samples for dna certain diseases have genetic basis what is possible ethical concern about the availability of inexpensive dna testing

Which description shows competition in an environment? an organism that feeds on some food an organism that finds a place to sleep three organisms of the same species living in an area three organisms battling over limited resources

Ali hypothesized that increasing fertilizer would increase plant growth. four groups of thirty similar plants were given 0 to 15 ml of fertilizer, as shown in the graph. the change in plant height for each group over a two-week period was averaged and recorded. plant group fertilizer added (ml) avg. growth (cm) a 0 4 b 5 6 c 10 8 d 15 3 what is the best conclusion based on this data? the hypothesis was not supported because the data indicated that fertilizing plants does not improve plant growth. the hypothesis was supported; to get the best growth, use 5 milliliters of fertilizer per plant. the hypothesis was not supported; the data indicated that too much fertilizer can inhibit plant growth. the hypothesis was supported; to get the best growth, use 15 milliliters of fertilizer per plant.