Why do plants need nitrate ions?
For making amino acids ( Option A )
The plants need nitrate ions for <u>making amino acids</u>
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Answer:
The first answer
Explanation: “add Energy from the form of heat to get a change in the state of matter”
To be reasonably sure that your observation will apply to the group you are studying, you should select a sample from the population and ensure that the selection is unbiased. The participants are selected at random to ensure that all the individuals in the group get equal chance of being represented in the sample. This removes the sampling bias in the sample.
Answer:
Independent variable
An
independent variable is a condition in a scientific study that is changed or
manipulated to test the effects on the dependent variable. The experimenter
controls the value of independent variable and its value represent inputs or
causes like potential reason for variation.
Additionally, there are
tendencies that independent variables are included in a scientific study especially
if the experimenter has no intention to test their effect directly.
<span>A. a second group of scientists finding significant differences in the DNA of the two different subspecies </span>
