Context and question: Symbiotic relationships include those associations in which one organism lives on another (ectosymbiosis, such as mistletoe), or where one partner lives inside the other (endosymbiosis, such as lactobacilli and other bacteria in humans or Symbiodinium in corals). Symbiosis is also classified by physical attachment of the organisms; symbiosis in which the organisms have bodily union is called conjunctive symbiosis, and symbiosis in which they are not in union is called disjunctive symbiosis.
What organism lives in a state of both ectosymbiosis and endosymbiosis?
Answer: unanswerable
Context and question: U.S. submarines, as well as some British and Dutch vessels, operating from bases at Cavite in the Philippines (194142); Fremantle and Brisbane, Australia; Pearl Harbor; Trincomalee, Ceylon; Midway; and later Guam, played a major role in defeating Japan, even though submarines made up a small proportion of the Allied naviesless than two percent in the case of the US Navy. Submarines strangled Japan by sinking its merchant fleet, intercepting many troop transports, and cutting off nearly all the oil imports essential to weapons production and military operations. By early 1945 Japanese oil supplies were so limited that its fleet was virtually stranded.
What type of vessels were part of a major role in defeating Japan?
Answer: submarines
Context and question: Wood density is determined by multiple growth and physiological factors compounded into "one fairly easily measured wood characteristic" (Elliott 1970).
Along with growth, what kind of factors determine the density of wood?
Answer:
physiological