Biology, 16.10.2020 03:01 dondre54

Suppose a scientist developed a hypothesis stating that a certain substance slowed down the growth of chili pepper plants. Briefly describe a controlled experiment the scientist could conduct to test the hypothesis. Identify the controlled variables, the independent variable(s), and the dependent variable(s).

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Answer from: lizzymikaelson22

The experiment consists of three different treatments:

1- Fifty (50) chili pepper plants treated with the substance X suspected to slow down the growth

2- Fifty (50) no treated chili pepper plants that grown in normal conditions

3- Fifty (50) chili pepper plants treated with a substance known to slow down the growth (positive control)

Dependent variable: plant growth

Independent variable: the amount of substance x (suspected to slow down plant growth)

Explanation:

The dependent variable is the variable that is being measured, while the independent variable isn't changed by the other variables in the experiment. In this case, the question is how chili pepper plants grow in response to the substance x, which is suspected to slow down the plant growth. During the experimentation, the plant growth will represent the dependent variable being analyzed. On the other hand, chili pepper growth will be in response to changes in the amount of substance x the plants receive, therefore being the independent variable.

Answer from: bean9840

Hypothesis development for substance.

A hypothesis is a temporary or tentative arrangement or explanation that is made for the experiment on the basis of an assumption. The experiments highlight the development of certain substances that slowed down to the growth of the chili pepper plans.

Thus the answer is slow growth, normal growth, and positive fast growth.

The assumed experiment consists of 3 treatments. As the first (50) chili pepper plants treated with substance X tend to slow down the growth. The second plant shows a grown in normal conditions. The 3rd plant sows the slow down the growth (positive control).Thus the dependent variable is then planted growth and the independent variable is substance X.

Learn more about the scientist's development.

Answer from: Quest

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.

Answer from: Quest

the correct answer is b

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