Coral reefs are the marine ecosystems. Many aquatic floral and fauna species inhabiting in coral reefs. Being a marine ecosystem it requires sunlight, oxygen, clear water, appropriate temperature ranges, nutrient availability to sustain life of organisms inhabiting. But human activities threaten coral reefs. Agriculture will have an indirect impact on coral reef. Fertilizers used in agriculture may reach coral reefs if the agricultural land is situation near coral reef. Plant growth nutrients present in fertilizers will promote the growth of more number of aquatic plants. This will result in eutrophication which is a condition were water body lacks oxygen making life of inhabiting organism in danger.
The pH of stomach secretion is low. This means it is acidic. Too much production can corrode the stomach wall. Therefore in such a situation drinking a basic solution with a higher pH neutralizes some of the stomach acidic secretions hence relieving the effect;
The most appropriate statement about healing wounds from the choices given is "cell growth increases both toward the beginning and the end of the healing process." The correct answer is A.
Possession of flagellum is not a taxonomic feature. many different unrelated organisms have flagellum. euglena, zooflagellates but also some fungi or even human sperm cells.
