A researcher is interested in the effects of nitrate and phosphate on plant growth and sets up an experiment in which groups of five plants are given 1, 2, and 3 grams of nitrate and 1, 2, and 3 grams of phosphate in all combinations over a period of one month. The researcher measures plant height and weight at the end of the experiment. What is missing in this experimental design?
Question 9 options:
a control
an independent variable
a dependent variable
a constant
Answers (1)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “A researcher is interested in the effects of nitrate and phosphate on plant growth and sets up an experiment in which groups of five plants ...” in 📙 Biology if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
What steps should you take when the results of an experiment do NOT support your hypothesis? A) Accept the converse of your hypothesis. B) Ignore the results and conduct the experiment again.
Answers (1)
When stopped at railroad crossing with multiple tracks cross?
Answers (1)
Often the growth cycle of one population has an effect on the cycle of another. As moose populations increase, wolf populations also increase.
Answers (1)
What happens to the skin during the Fresh stage of decomposition?
Answers (1)
Choose the best answer: do humans have an effect on the frequency of natural disasters? no. natural disasters are caused by forces internal to the earth no. natural disasters are random and people cannot affect them maybe.
Answers (1)
New Questions in Biology
List the four (4) major groups for the antidepressant medications and the prototype of each one. what are the major differences between the four (4) classes?
Answers (1)
Which causes an increase in greenhouse gasses
Answers (1)
Epithelial cells grow close together to form the body's.
Answers (1)
Visible bleeding during a dental procedure is a reliable predictor of bacteremia. It is not clear which dental procedures are more or less likely to cause transient bacteremia or to result in a greater magnitude of bacteremia than that caused by
Answers (1)
The diagram shows the fossils found in different layers of a rock. A diagram labeled Fossil Layers is shown.
Answers (1)