There are more microbial cells than human cells in your body, and the health of this microbiota clearly influences human well-being. How many microbes are there?
A. For every cell in your body, there are ten thousand microbial cells.
B. For every cell in your body, there are one thousand microbial cells.
C. For every cell in your body, there are one hundred microbial cells.
D. For every cell in your body, there are ten microbial cells.
Answer: D
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Answer the following statement true (T) or false (F)
Eosinophils
A) are phagocytic cells. B) represent up to 70 percent of the white blood cell population. C) are agranular leukocytes. D) are among the largest of the white blood cells. E) None of the answers are correct.
What makes cartilage an unusual connective tissue?
A) Types of cartilage are named for their primary locations in the body. B) Cartilage lacks collagen fibers. C) Cartilage lacks an extracellular matrix (ECM) and ground substance. D) Cartilage essentially lacks blood vessels coursing through the cartilage.
Cells that respond to ligands
A. are using electrical signals in cellular communication. B. generally produce the ligands. C. possess receptor sites for specific ligands. D. are not functional. E. have lysosomes that destroy the ligands.