Dopamine plays a central role in the working of the brain's built-in reward circuit.
Answer the following statement true (T) or false (F)
True
The neurotransmitter dopamine is essential for mood regulation and plays a central role in the reward circuit.
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Which of the following is secreted by cells in the juxtaglomerular apparatus in response to a
significant drop in blood pressure or blood volume?
a. atrial natriuretic factor b. renin c. aldosterone d. antidiuretic hormone e. angiotensin
Most of the colors we see around us result
from
a. reflected light. b. direct sunlight. c. absorbed light. d. the inherent color of the objects we are looking at. e. a combination of absorbed and reflected light.
Twins are said to be concordant for a trait when
A. both twins exhibit the trait. B. only identical twins exhibit the trait. C. only fraternal twins exhibit the trait. D. fraternal twins more often show the trait than identical twins. E. None of these is true.
What is mainly responsible for the loss of biodiversity globally?
A) poaching B) introduced species C) habitat destruction D) pet trade