On the periodic table, beryllium sits above magnesium and to the right of lithium. Given that magnesium has two electrons in its outer shell and lithium has one, how many electrons would you predict beryllium has in its outer shell?
A. One ?B. Two ?C. Three ?D. Four
B
Anatomy & Physiology
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Which of the following types of neuroglia are found in the choroid plexus of the ventricles of the brain, and produce cerebrospinal fluid?
A) astrocytes B) microglia C) ependymal cells D) oligodendrocytes
Anatomy & Physiology
What nonspecific cells kill virus-infected cells and tumor cells by cell to cell contact?
A. B lymphocytes B. T lymphocytes C. Natural killer cells D. Mast cells
Anatomy & Physiology
One function of saccades is to prevent adaptation of photoreceptors to a visual image
Indicate whether the statement is true or false.
Anatomy & Physiology
A __________ is a display of the chromosomes of a somatic cell during metaphase of mitosis
A. karyotype B. genome C. gamete D. locus
Anatomy & Physiology