Which statement describes how the electron shells of sodium (Na)-11 electrons- are filled?
A) 2 electrons in the first shell and 9 electrons in the second shell
B) 2 electrons in the first shell, 8 electrons in the second shell, and 1 electron in the third shell
C) 4 electrons in the first shell, 4 electrons in the second shell, and 3 electrons in the third shell
D) 11 electrons in the first shell
E) 8 electrons in the first shell and 3 electrons in the second shell
B) 2 electrons in the first shell, 8 electrons in the second shell, and 1 electron in the third shell
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I am characterized by having a test and axopods. Who am I?
a. green algae b. actinopods c. opisthokonts d. stramenopiles e. foraminiferans
Excessive consumption of calcium, and high calcium levels in the blood will likely cause ____________.
a. raising levels of aldosterone b. lowering levels of parathyroid hormone c. lowering secretion of vasopressin d. decreasing atrial natriuretic hormone
A person exposed to hepatitis A virus may be treated with an injection of antibody molecules. This type of treatment is
A) immunization. B) serology. C) vaccine therapy. D) passive immunotherapy. E) adjuvant therapy.
A series of nodular lesions on an arm that fill with pus and ulcerate through the skin is characteristic of infection with the fungus
A) Microsporum. B) Trichophyton. C) Epidermophyton. D) Micrococcus. E) Sporothrix schenckii.