Answer the following questions true (T) or false (F)
1. Surface barriers, such as the cutaneous and mucous membranes, provide innate immunity against pathogens.
2. Membrane-attack complexes (MAC) can lead to cell lysis through their insertion into a target cell's plasma membrane.
3. Pus indicates only that an inflammatory response took place.
1. FALSE
2. TRUE
3. TRUE
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Peristaltic waves force urine along the length of the ureter.
Answer the following statement true (T) or false (F)
The vitreous humor is watery
Indicate whether the statement is true or false.
Skeletal muscles help maintain body temperature in that
A) excess myosin is quickly metabolized to yield heat. B) they conserve actin and myosin in cold weather. C) the more active they are, the more heat is released. D) the more active they are, the more heat is used up.
What type of photoreceptors are almost entirely responsible for night vision?
What will be an ideal response?What will be an ideal response?