Biology, 27.01.2021 01:20 avashyasingh
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: 2
Biology, 22.06.2019 05:40
Benito is doing research on the effects of florida's elevation on its climate. his notes include the following: 1. the average elevation of florida is 30 m above sea level. 2. the highest point in florida is britton hill, which is 105 m above sea level. 3. the change in temperature from 0 m to 1,000 m is 7 °c. what can benito conclude about the effects of florida's elevation on its climate? a.) florida typically experiences cold temperatures and temperature changes within a narrow range. b.) florida typically experiences cold temperatures and temperature changes within a broad range. c.) florida typically experiences warm temperatures and temperature changes within a narrow range. d.) florida typically experiences warm temperatures and temperature changes within a broad range.
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Me with biology endocrine system crossword also image left i need with hw
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Biology, 22.06.2019 06:20
What makes a dominant allele different from a recessive allele
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Biology, 22.06.2019 12:40
Which statement describes how favorable traits in a population relate to natural selection? they are the only traits that ever exist in the population. they build in the population over time. they are rarely passed on to offspring. they are found only in a few individuals within the population.
Answers: 1
Two students completed an experiment to determine if pesticide use at local farms was causing fish k...
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