The aphotic zone (bottom of the ocean) will have ____ and ____ while the photic zone (surface of the ocean) will have ____ and ____. A: low temperature, low salinity; high temperature, high salinity B: low temperature, high salinity; high temperature, low salinity C: high temperature, high salinity; low temperature, low salinity D: high temperature, low salinity; low temperature, high salinity E: both have equal temperature and salinity

中国大学MOOC: A strong scientific title is descriptive, brief, specific, and accurate. It also useskey words that readers will search for. The title with the √ before it is considered to be the better one. Decide whether the following choice is the correct one. 8. A. Effects of added calcium on salinity tolerance of tomato√ B. Calcium addition improves salinity tolerance of tomato

Q14. Match up the terms and definitionsThe number of species within a community A: Anaerobic B: Herbaceous C: Diversity D: Salinity E: Detritus F: Angiosperms

Mangroves live in coastal waters that: A: Are well protected from strong wave action B: Have high salinity at all times C: Are located in temperate regions with wide seasonal temperature fluctuations D: Have high amounts of nutrients

Choose the correct letter, A, B, C or D.Write the correct letter in boxes 22-26 on your answer sheet. The decrease in the number of whales and seabirds is due to A: killer whales’ activity around Antarctica. B: the correlation between sea birds’ migration and the salinity level of the ocean. C: the lower productivity of food source resulting from less sea ice. D: the failure of seals to produce babies.