White muscle fibers primarily use ____________ to make ATP.
A. myoglobin
B. lactate
C. oxygen
D. mitochondria
E. aerobic respiration
Answer: B
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What genetic elements can increase the misalignment of homologous chromosomes?
A. RNA polymerase B. promoter elements C. enhancer elements D. transposable elements E. topoisomerase
Which structure of the heart is attacked by the immune system in a case of rheumatic fever?
a. aorta b. vena cava c. myocardium d. heart valves e. sinoatrial node
Irrigated land accounts for approximately what percentage of human food production?
a. 10 b. 30 c. 50 d. 75 e. 90
Suppose you perform a Gram stain of a mixed culture of Gram-positive and Gram-negative cells, and afterwards you realize that you omitted the iodine step. What would you expect to see if you observed the slide under the microscope?
a. colourless Gram-positive and pink Gram-negative cells b. purple Gram-positive and pink Gram-negative cells c. pink Gram-positive and pink Gram-negative cells d. colourless Gram-positive and colourless Gram-negative cells