Alicia would like to determine the effect of epinephrine on a fish's heart rate. alicia designs the following experiment: select a fish for the experiment. measure the fish's heart rate. inject the fish with epinephrine. measure the fish's heart rate again. record the results. in looking at alicia's experiment, what is wrong? a. she should have tested the effect of other hormones as well. b. she shouldn't have measured the fish's heart rate twice. c. she didn't determine what a fish's normal heart rate is. d. she didn't use a second fish as a control.

In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity

The process of meiosis produces only gametes, eggs or sperm. according to the diagram, how many sperm are formed from each cell that undergoes meiosis?

What evidence could be used to convince policy makers to change a shipping lane from going through a whale breeding ground? information on the number of all whale species currently alive information on the number of all whales hit by boats in the given area information on the number of whale deaths in the world's oceans information on the number of whale offspring born every year. (a) scientists could collect and combine data on fish populations all around the world to show that their populations are declining. (b) scientists collect and combine data on fish populations all around the world to show that their populations are increasing. (c) scientists work together and use past data to show that fish populations are becoming locally extinct in some areas. (d) scientists work together and use past data to show that some fish populations are adapting to environmental changes.