What does this indicate given the analysis of the Captains blood sample?

science-ocean floors and habitats study guide by volleyballqueen3817 a major advance in ocean-floor mapping. list four sections of the ocean floor. algae that use sunlight to produce their own food through photosynthesis. all of the feeding relationships that exist in a habitat. drying out, predators, find food.

japan is the correct anwser because i already took the test and i passed it

d.embryo is the correct one