Answer: not me
Explanation: This isn't an actual question that you need help with. Please post questions you actually need help with in school, homework, or anything else so we can help you. Thanks!
61/3 is the answer for this question
Answer:
The fourth plant that receives pure water is the control group.
Explanation:
The election of a control group is essential in an experiment. Its principal purpose is to allow the discrimination of the results obtained by the treatment in the study, in this case, <em>the different concentrations of salty water that each plant receives</em>. The control group provides a reference point. It must be selected from the same population of the treatment groups. Both groups must be similar in every variable that might influence the results, <u>except for the study treatment.</u>
This process is called osmosis whereby water exits the cell through its selectively permeable membrane and into the salt solution to dilute and balance the pressure caused by the concentrated salt solution.
Answer: Because of the texture of their skin. Lizards have dry scaly skin, whereas the frogs have thin, moist skin.
