This is an experiment where the researcher manipulates one variable, and control/randomizes the rest of the variables. It has a control group, the subjects have been randomly assigned between the groups, and the researcher only tests one effect at a time.
The third example will be “cancer”
Hope this helps. Heiendisksosnsixnsj
The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
SO CELLS, ORGANS, SYSTEM AND ORGANISMS I GUESS?
Aerobic respiration to lactic acid fermentation, lactic acid is the reason your muscles get sore after a workout
Hope this helps.
