The statement that could complete the statement that states about the Challenger's mission about the ocean and the best choice which is correct is in letter B. Water Chemistry. I hope you are satisfied with my answer and feel free to ask for more
Answer:d.) protozoa
Explanation:protozoa is a unicellular eukaryotic organism that belongs to kingdom protista. Protozoans depends on other organism for there food because they do not produce there own food. Some protozoa can be parasitic in nature.
Example of protozoa is amoeba.
If the a decomposer were absent from the forest, everything would just pile up onto one another and never be returned to the Earth.
The papaya, especially the green one, is used as a tenderizer in boiling red meat. This is because of the property of papaya's skin and leaves contain enzymes called papain. When this papain get contact to red meat the connecting tissue of the meat easily breaks down
