The endocrine system comprises a network of ___________ that produce and secrete chemical messengers called ____________.
A) glands, hormones
B) nodes, catecholamines
C) vessels, leukotrienes
D) synapses, neurotransmitters
Answer: A) glands, hormones
You might also like to view...
The function of the seminal vesicle is to
A. produce 60% of the seminal fluid. B. prevent urine from mixing with semen. C. contribute to seminal fluid and lubricate the end of the penis during intercourse. D. None of the above
Which way would O2 and CO2 diffuse during internal respiration?
a) Both O2 and CO2 would diffuse into the systemic capillaries. b) O2 would diffuse into the systemic capillaries, and CO2 would diffuse into the cells. c) O2 would diffuse into the pulmonary capillaries and CO2 would diffuse into the alveoli. d) O2 would diffuse into the cells, and CO2 would diffuse into the systemic capillaries.
Which of the following personality dimensions from the "Big 5" personality theory has been found most predictive of success across a broad array of jobs?
A. openness to experience B. agreeableness C. extraversion D. conscientiousness E. emotional stability
What ion concentration is linked to calcium ion concentration and regulated by vitamin D3 (calcitriol)?
A) phosphate ions B) sodium ions C) potassium ions D) fluorine ions