What does the midbrain do in fish and amphibians?
A) It coordinates reflex responses to auditory and visual stimuli.
B) It detects the presence of pheromones.
C) It is responsible for maintaining body posture.
D) It controls heart rate and blood pressure.
Answer: A
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____________ was used to stop the skin capillary from bleeding
Fill in the blank(s) with correct word
Innervation of a single target by both branches of the ANS
a. is called dual innervation b. occurs only for a small number of organs c. occurs only for sweat gland d. both (a) and (b) e. both (a) and (c)
Which of the following is true of potassium ions?
a. they are actively secreted in the proximal tubule b. their concentration is controlled by aldosterone c. changes in concentration can affect membrane excitability d. are reabsorbed in the distal tubule e. both (b) and (c)
The major route of excretion for Na+ (under normal conditions) is the ________.
A. kidney B. sweat C. adrenal cortex D. GI tract E. skin