Answer:
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
Answer:
hydorpher i think
Explanation:
sorry if i spelled that wrong :)
I'll say Graph C cause both Graph A and Graph C look slighty different but both are close to being the same but in Graph C it shows different Figures Both don't match each other hence Population of birds in Graph C are specialized in different types of food.
Answer:
chloroplast........................
Each time an organism is consumed, 90% of the energy is lost as heat. that leaves only 10% for the carnivore