Animals have a great variety of internal structures that define the way they live. for example, a bear has lungs to it get oxygen to all of its cells. what does a fish have that serves the same function? a. scales b. gills c. fins d. lungs

Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence

The carrier molecules of the electron transport system are located in the

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.