Which system produces red blood cells?
a. endocrine
b. skeletal
c. muscular
d. immune
e. integumentary
ANSWER: b
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Which of the following does not occur prior to or during stage 1 of labor?
A. uterine contractions B. effacement C. bloody show D. breaking water E. dislodging of the placenta
A candy bar contains 108 calories per serving. There are 4 grams of carbohydrate, 5 grams of protein, and 8 grams of fat in a serving. How many of the calories come from fat? Note: One food calorie equals one kilocalorie.
A. 72 B. 16 C. 18 D. 20
Which of the following microorganisms use M protein to avoid destruction of a phagocyte?
a. Coxiella burnetii b. Streptococcus pyogenes c. Streptococcus pneumoniae d. Haemophilus influenzae
Cave-dwelling catfish and cave-dwelling salamanders share striking similarities: Both organisms lack pigmentation, and their eyes are reduced or absent. The most recent common ancestor to these organisms had normal pigmentation and fully developed eyes
The similarities between cave catfish and cave salamanders are an example of A) phylogeny. B) analogy. C) homology. D) exaptation.