Final answer:
The subject of this question is Biology, and the grade level is High School. The question involves the measurement of metabolic activity in Antarctic fish and understanding basic biological concepts.
Step-by-step explanation:
The subject of this question is Biology, as it involves the measurement of metabolic activity in Antarctic fish. In Biology, metabolism refers to the chemical processes that occur within living organisms to maintain life.
The grade level of this question is High School, as it involves the understanding of basic biological concepts and scientific measurements.
Biology is the study of living organisms and their processes. In this case, the metabolic measurements taken from the seven Antarctic fish are a part of studying these organisms and understanding how their bodies function in extreme environments.
SEO Keywords: Biology, metabolic measurements, Antarctic fish, living organisms, chemical processes