<span>The cell walls and membranes of archaea are made of different substances than those of other prokaryotes</span>
Although the actual questions are missing from your ask, here's how you can tell.
If the study will be messed up (added bias) through interaction with the subjects the study should be observational. For example if a biologists wanted to study the eating habits of wild birds in the tropics, they would need to do an observational study. if they did a controlled experiment, the birds will change their eating habits based on human interaction, thus making the study invalid.
If the study requires specific measurements, close monitoring, or contact and interaction with the subjects the study should be a controlled experiment. For example, if a scientist wanted to test out a new drug, the health of patients would need to be closely monitored.
Measuring the height of a plant is an example of quantitative data
Answer: Option C
<u>Explanation:</u>
When there is an experiment performed there are 2 types of data that can be recorded one is a qualitative data and quantitative data. Qualitative data is a type of data that describes the quality of the product formed whereas the quantitative data is a data that quantitative the numerical values that we get through the experiment. A quantitative data is more authentic than a qualitative data as it provides figures for comparison.
Answer:
i believe its the electron transport chain
Explanation:
