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.
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There are six elements that make up most of the human body. which of the following is not one of these six elements?
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The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight.which of these is the most likely effect on the ecosystem? a-an increase in biodiversity. b-an increase in immigration to the area. c-a decrease in available water. d-a decrease in plant growth.
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Describe how a non-resistant staphylococcus aureus bacterium can produce a bacterium that is resistant to methicillin
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The image below shows a weather service map. which details best describe this map? check all that apply
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Alicia would like to determine the effect of epinephrine on a fish's heart rate. alicia designs the...
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