Answer:
B
Explanation:
Brain/nervous system in charge of everything
Scientific validity is the applicability of a conclusion drawn in the context of a scientific experiment to the world at large.
Cell
Tissue
Organ
Organ System
Organism
Physical arousal can facilitate passionate love. It is a naturally occurring and deeply embedded trait found within the DNA of living organisms. The purpose of such is the need to propagate the species in order to ensure its survival in the long run of evolution.
The answer is B. The phrase “changes slightly as” suggest it is still in the process of metamorphosis because “as” shows it is still in the process.
