Plankton is composed of the phytoplankton (“The plants of the sea”) and zooplankton which are typically the tiny animals found near the surface in aquatic environments. Diatoms are a type of phytoplankton and are a typical food source for zooplankton. Polar Regions such as the Arctic Ocean’s Barents Sea, off the northern coast of Europe, experience continuous darkness for about three months of winter and continuous illumination for about three months during summer. The following graph illustrates the average total mass of Diatoms and zooplankton in the Barents Sea each month.

Based on this data, what can be concluded about the impact seasonal changes have on these organisms around the Barents Sea?

A. Due to the availability of solar energy, Diatom mass peaks in July.
B. Seasonal Changes have no impact on these organisms
C. The availability of solar energy limits photosynthetic productivity in winter months
D. During winter months the Diatom and zooplankton population completely die off due to the lack of sunlight.

hey! what was the rest of the question?

michael’s company should invest in the updating of every section as well as data and processes technology and software. through the analysis of the manufacturing process, the company can take a clear approach towards the best way to improve not only the process but also de final result. some of the main problems that manufacturing companies face are the waste of material due to disorganized processes and the lack of real-time process checkings. this can be solved with specific software and machines that can turn paperwork into the digital era and that will reduce the time employees take on that, being this time better apply to control the production process and communication among different sectors of the company, the product will be made in shorter time with better quality and more profit

the purpose of the heading in the passage is to identify who is telling the story.

this excerpt is part of the book sugar changed the world (2010) written by marc aronson and marina budhos. as the book has been written by two people, the heading "marc" indicates that this specific excerpt is being narrated by aronson. in the fragment, marc describes his grandfather's story after hearing it from his cousin. however, there are other excerpts where budhos is the one that tells the story of her family.

aronson and budhos, who are husband and wife in real life, decided to write sugar changed the world when they found out how sugar, which had an important role in slavery and economy, changed their ancestors' lives.