Humoral immunity is mediated by the _____.
A) monocytes
B) T cells
C) B cells
D) neutrophils
Ans: C) B cells
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The second law of __________ says that the universe is moving from a state of order to one of disorder
Fill in the blank with the correct word.
An atom of chlorine has 17 protons and 18 neutrons. Which of the following statements is true?
A. Chlorine has 35 electrons. B. Chlorine has an atomic number of 18. C. Chlorine atoms have 18 electrons. D. Chlorine has a mass number of 35. E. Chlorine has an atomic number of 35.
Which of the following is NOT true of the stratum basale?
A. It contains melanocytes. B. It consists of only one layer of cuboidal or columnar cells. C. It is the deepest layer of the epidermis. D. It is the layer of the epidermis in which cell division is occurring. E. All of these are true of the stratum basale.
The myelination of central and peripheral axons occurs rapidly through the first few years of life. How can this developmental process explain the improved motor abilities of infants and toddlers?
What will be an ideal response?