They should enter the field of Ichthyology, as it is the study of fish.
Oceanography, is a generalized study of the ocean, such as plate tectonics, ocean-life, ecosystems, and other aspects of ocean study.
Explanation:
Biosphere. It is the highest level of organization. It is the global ecological system which consists of all the living organisms and other factors which supports life.
1. RNA has ribose sugar instead of deoxyribose
2. RNA is generally single-stranded instead of double-stranded
3. RNA contains uracil in place of thymine
Coronary Arteries Bypass Graft (CABG) is an open heart surgery procedure in which it bypasses the blockage located in coronary arteries to improve circulation of the blood. CABG procedure undergoes coding to better understand the process. For Combined Arteries-Veins Coronary Bypass Graft, it uses both the Arteries and Veins in the procedure. Thus, Use Arterial Code 33536 and followed by Venous Code which is 33523. Therefore, the answer to the above question is letter A.