The answer is A. Reproductive system
A couple limitations could be human variability meaning each human is a little bit different from the last. there could be a lot of other factors impacting your outcome.
Also, the risk of losing a life. For example it is more risky to conduct a research on if saturated fats give you cardiovascular disease on humans then it would be to conduct this research on rats.
Answer:
Yes
Explanation:
Plants extract CO2 from the air and also use sunlight and water as the reactants of the process photosynthesis. Photosynthesis then produces Glucose and Oxygen. Oxygen is rid of the plant.
Ocean waters has its own level of density which depends of the climate, temperature and most of all the location where it came from. The more the ocean water absorbs heat the more its density as a result it rises above from cold to hot. So the the water from the Antarctica usually is less dense and then become more dense when it goes to the equator which is more hot.
