The answer to the first question is a.
The answer is the plant growth, because the dependent variable is what responds to the independent variable.
7. b and 8. c i attached the photo for u to see how i did it
The pipettes can basically be characterized into five grades. these grades includes the serological, disposable, repeat, single channel and multi-channel pipette. The guidelines for the usage of each of these pipettes differ. However, some instructions are common, such as the control of the flow of liquid. The index finger is used for the purpose of controlling the flow of the liquid from the pipette.
Hence, the answer is 'index finger'.
