Answer : The correct answer for cardiac output is 18 Liter per minute
Cardiac output is the amount of blood pumped by heart per minute. It is product of heart rate and stroke volume . Heart rate is number of beats per minute (bpm) and stroke volume is volume of blood pumped per beat (Liter per beat or Lpb) . Cardiac output can be calculates using following formula :
Cardiac output = Heart rate ( HR ) x stroke volume (SV )
The unit of cardiac output = Liters per minute
Given : Heart rate = 150 bpm
Stroke volume = 120 mL
Since volume is in mL , this need to be converted to L.

Plugging values of HR and SV in formula :
Cardiac output = 
Cardiac output = 
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1. The right answer is sensory organs.
An organ is called "sensory" when its action results in a sensory perception. In humans, the eyes, nose, tongue, ears, and skin are the sensory organs of the body. They allow an individual to perceive one of the five senses: sight, smell, taste, hearing, and touch. For this, these specific organs transmit information to the brain in the form of electrical pulses. In cats, the vibrios are the main sensory organ while the sensilla provide this function in arthropods.
2. The right answer is B) endocytosis and exocytosis of substances.
The equilibrium (homeostasis) of a secretory cell requires for each stage of its vesicular transport a close coupling between fusion and fission, exocytosis and endocytosis.