I am pretty sure it is D. confucius lived during the Zhou dynasty and from what i have read the dynasty sounds pretty peaceful
The source of the oxygen released into the air as a product of photosynthesis is C) Water only.
Answer:
The correct answer is "For different reasons, including: pathogens developed resistance, people traveling much more frequently and practices of terrorism".
Explanation:
Emerging diseases are infectious diseases that are new to a region, or that remerge from a place that were believed to be eradicated. For different reasons emerging diseases are appearing in industrialized countries. One is that pathogens may have developed resistance to the treatments, as they may evolved naturally or it was driven by overuse of antibiotics. Other is that people are traveling much more frequently than in the past, which helps pathogens from distance places to reach industrialized areas. Also, terrorism practices is a cause of introducing pathogens deliberately to a new place.
Euglenoids, dinoflagellates, and usually Diatoms are unicellular while brown algae, red algae and green algae may be multicellular. Photosynthetic pigments are found in all algae like chlrophyll a and yellow or orange carotenoids. Also, almost all algae is aquatic. Also, all algae are eukaryotes and the sex organs are unicellular in all algae.
