The independent variable would be <u><em>a. concentrations of ethylene spray</em></u>
<u><em /></u>
In virtually all scientific investigations that seeks to establish a cause-and-effect relationship, there are usually two main variables involved:
- <u>Independent Variable: </u>This is the variable that is manipulated by the researcher to cause or establish the extent of the effect it will have on the dependent variable that is being studied. It is the cause<em><u>.</u></em>
- <u>Dependent Variable:</u> This is variable that is measured by the researcher. It is the effect which is dependent on the independent variable.
In the scenario given, <em>different concentrations of ethylene spray</em>, is what the researcher manipulates, while <em>the length of ripening time, </em>is what is measured by the researcher.
The <em>the length of ripening time </em>is dependent on the <em>different concentrations of ethylene spray. </em>Therefore:
- the length of ripening time is the dependent variable
- the concentrations of ethylene spray is the independent variable.
Learn more about dependent and independent variables here:
brainly.com/question/23700645
The answer is C. Climate is all year round and can change but only over a matter of time and is not sectioned off to day by day temperatures
Answer:
The probability of their first child being colourblind is 1/4
Explanation:
Red-green color blindness is an X-linked recessive disorder.
A woman with normal vision whose father was colorblind has children with a man with normal color vision.
In an X-linked condition, the males only need to get one copy of the affected allele to have the condition and this copy is also inherited by a female offspring.
So in this case, the woman receives the affected recessive allele copy from her dad but since she still has normal vision, she received the normal copy from her mom so she is heterozygote for the trait.
The woman with normal color (XRXr) has a father who is color blind (XrY) has children with a normal man (XRY)
The cross would be
XRXr x XRY
XR Xr
XR XRXR XRXr
Y XRY XrY
Probably of having an affected child is 1/4. Thus, the probability of their first child being colourblind is 1/4
The correct answer is B, aeration.
