Low levels of the neurotransmitter serotonin may appear to contribute to aggression. Dopamine and serotonin are the most hormones that are linked with aggression, that is low level of serotonin and high levels of dopamine. The normal effect of serotonin is the inhibitory effect on aggression levels when at normal levels. At the pre-Frontal Cortex serotonin is usually found at its lowest levelsnand increases aggression.
The qualitative-quantitavtive debate can trigger an intense debate. To say that one or the other approach is better is a trivializing of a far more complex topic than a dichotomous choice. ... Qualitative data typically consists of words while quantitative data consists of numbers.
Answer:
The structure labeled 2 is tRNA, transfer RNA
The control (choice A) I believe :)