Water output is largely controlled by varying
cutaneous transpiration
drinking
urine volume
sweating
The Correct Answer is C
A. Cutaneous transpiration: While cutaneous transpiration (evaporation of sweat from the skin) contributes to water loss, it is not the primary mechanism controlling water output.
B. Drinking: Drinking affects water intake rather than output. It does not directly control how much water is excreted from the body.
C. Urine volume: Urine volume is the primary means by which the body regulates water output. The kidneys adjust urine volume to maintain fluid balance and homeostasis.
D. Sweating: Sweating contributes to water loss but is not the primary mechanism for controlling overall water output compared to urine production.
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View Related questions
Correct Answer is A
Explanation
A. The cardiovascular system is primarily involved in transporting blood and nutrients but does not directly excrete waste.
B. The respiratory system: The respiratory system helps excrete carbon dioxide, a waste product of metabolism.
C. The digestive system excretes waste through the process of defecation.
D. The integumentary system (skin) excretes waste through sweat.
E. The urinary system is directly involved in the excretion of waste products through urine.
Correct Answer is C
Explanation
A. Ingestion refers to the process of taking in food through the mouth, not the absorption of nutrients into the body's tissues.
B. Digestion involves the breakdown of food into smaller molecules that can be absorbed, but it does not refer to the actual uptake of these nutrients into tissues.
C. Absorption is the process of taking up nutrient molecules into the bloodstream from the digestive tract, which then allows them to be used by the body's tissues.
D. Compaction refers to the process of absorbing water and consolidating indigestible residues into feces, not the absorption of nutrients into tissues.