Answer: By us people breathing in oxygen and breathing out carbon dioxide.
The answer would be B. as ribosomes are in charge of translating mRNA to polypeptides and thus proteins. (In this case osteoid and various hormones)
In order from least to most dense, it must be: C, B, A and D. Seawater with high temperature causes an object to float, while seawater with low temperature sinks or is denser than high temperature. Salinity is also a factor to determine density; the higher the salinity, the denser the water. In terms of depth, it seems that sample D is the deepest part while sample A is the shallowest. This is determined because temperature drops significantly with depth.
I’m not sure I understand, can you be more specific?
