The __________ gland produces hormones and is the
site where __________ (a kind of white blood cell)
mature. Fill in the blank(s) with the appropriate word(s).
Answer: thymus; T-lymphocytes
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Which blood cell type is correctly matched to its function?
A. monocytes—defense against microorganisms B. erythrocytes—immunity C. leukocytes—blood clotting D. platelets—hematopoiesis E. leukocytes—oxygen transport
Which statement is TRUE about mitosis in animal cells?
a. The location of the centromere is the same for each chromosome. b. All spindle fibers become attached to kinetochores. c. The spindle apparatus is composed of actin protein molecules. d. The spindle begins to disassemble during telophase. e. Some centromeres overlap midway at the spindle.
How would an earthworm stretch its body to reach a patch of dirt after crossing a hot sidewalk?
A. Relaxing the chaetae (setae) B. Contraction of the longitudinal muscles C. Contraction of the circular muscles D. Pulling on the chaetae (setae)
Which of the following is one of the oldest antimicrobial agents and can be used as a tincture on cuts or in combination with a detergent to prepare skin for surgery
What will be an ideal response?