Biology, 20.09.2020 09:01 ariellewallenst4348
Two students completed an experiment to determine if pesticide use at local farms was causing fish kills in a local pond. The steps of the experiment are listed below. Select different locations to collect water samples in the pond. Collect a 5-mL water sample at 8 am at a different location each day for 10 days. Measure the amount of pesticide present in each sample using the same measurement tools. After analyzing their data, the students conclude that pesticide runoff from farms is not causing the fish to die in the pond. Which of these statements best describes why their conclusion is not valid? The amount of water collected each day was the independent variable. The daily location for sample collection was not a controlled variable. Pesticide measurements were the dependent variable. The time of sample collection was not a controlled variable.
Answers: 3
Biology, 21.06.2019 17:40
4the indian leaf butterfly has traits that allow it to resemble a leaf. the bright colors of the monarch butterfly indicate that the butterfly tastes bad and can be poisonous. how does the appearance of these butterflies them to survive? f the indian leaf butterfly is able to avoid predators while the monarch butterfly warns predators away. g. the indian leaf butterfly frightens predators away while the monarch butterfly poisons predators before they can eat it. h both butterflies rely on camouflage to avoid predation. j both butterflies cooperate with one another to avoid predation.
Answers: 1
Biology, 22.06.2019 04:00
As studied this week in the cell cycle, we saw how a cell moves through its life with a plan. as you transition from a student at uma to a valued member of your chosen career field, what will you put into place in your life to manage and to fit the new responsibilities of your career into your current life?
Answers: 2
Biology, 22.06.2019 07:30
Suppose you were the commissioner of corrections for your state. which correctional activities might come within your domain? which mostly would not
Answers: 3
Two students completed an experiment to determine if pesticide use at local farms was causing fish k...
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