Many seeds are capable of surviving in a dormant or quiescent state for many years, or even centuries. Such seeds are not usuall
y damaged by environmental extremes that would kill most other organisms. What main adaptation prevents the seeds from germinating before they are dispersed and allows them to survive until environmental conditions are favorable for germination and seedling growth
Serotonin is an important chemical and neurotransmitter in the human body. it is believed to help regulate mood and social behavior, appetite and digestion, sleep, and memory
