What is the purpose of the vitreous humor?
A) Pushes the retina against the choroid
B) Nourishes the iris and lens
C) Holds the lens in position
D) Focuses the light onto the fovea centralis
Answer: A
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Which of the following is NOT a function of the kidneys?
1.Help maintain proper acid-base balance. 2.Excretion of end products of bodily metabolism. 3.Synthesis of erythropoietin. 4.Influences white blood cell production.
Many factors modify metabolic rate. Which one increases metabolic activity?
A) increasing exercise B) aging C) hypothermia (lowered body temperature) D) obesity
The ________ is the gonad and the ________ is the gamete
A) semen; sperm B) sperm; semen C) testis; ovary D) testis; semen E) testis; sperm
As bones age, their percentage of inorganic material decreases, leading to increased flexibility.
Answer the following statement true (T) or false (F)