A symptom of infection can include malaise, which means:
a. rapid heart rate
b. increase in white cell count
c. fever
d. general ill feeling
d. general ill feeling
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Limbs like arms, legs, and the fins of whales are part of the:
A. axial skeleton. B. appendicular skeleton. C. mobile skeleton. D. central skeleton.
Although bacteria lack membrane-bound organelles, such as chloroplasts and mitochondria, they can still perform the
functions of these organelles by localizing certain metabolic enzymes on: a. ribosomes. b. the cell wall. c. the plasma membrane. d. the nuclear membranes. e. the endoplasmic reticulum.
Which of the following is correct concerning a spherical cell?
(A) As the diameter decreases, the surface area remains the same. (B) As the diameter decreases, the surface area increases. (C) As the diameter decreases, the surface-to-volume ratio increases. (D) As the diameter increases, the volume decreases. (E) The surface-to-volume ratio is independent of the diameter.
Which of the following components are found in the cell walls of gram-positive bacteria, but not gram-negative bacteria?
A. Cytoplasmic membrane B. Lipopolysaccharide C. Outer membrane D. Peptidoglycan E. Teichoic acid