Answer:
cellular respiration...that's breathing out of humans
and through human activities like burning of fossil fuels...
The function o the phytoplankton in ocean ecosystem is A. producer. <span>Phytoplankton produce their own energy through a biological process or chemical reaction. They are a key factor of the aquatic biome.</span>
No, not gastric ulcers. Ulcers, yes. But gastric ulcers are specific to the digestive system, hence the word gastric! :)
Quantitative data uses quantities or numbers.
so C is qualitative (it uses qualities like colors)
B is not referring to data or recording
i think A is the best option
