Which cells in our body possess the MHC II protein?
A. Thymus cells
B. Neurons
C. Macrophages
D. Nasal epithelial cells
E. Erythrocytes
Answer: C
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Cells contain twice the normal number of independent chromosomes briefly during
A) prophase. B) metaphase. C) anaphase. D) telophase.
During which phase(s) of urine formation are H+, K+, and urea transported out of peritubular capillaries and into filtrate?
a. tubular secretion b. glomerular filtration c. tubular reabsorption d. all of the choices
Plants using the C4 photosynthetic pathway
A) use rubisco to catalyze the reaction between O2 and RuBP. B) have a lower rate of photosynthesis than plants using the C3 photosynthetic pathway. C) divide photosynthesis between mesophyll and bundle sheath cells. D) are mostly trees.
Which of the following hormones may take part in one or more of these functions: daily rhythms, long periods of sleep, and depression?
A) melatonin B) thymosin C) oxytocin D) growth