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A doctor needs to convince his boss to approve a test for a patient. Which statement below best communicates a scientific argument that justifies the need for the test?

A. The patient looks like he needs this test.

B. The doctor feels that the patient needs this test.

C. The patient's symptoms and health history suggest that this test will enable the correct diagnosis to help the patient.

D. The patient has excellent insurance that will pay for several tests, and the doctor would like to run as many tests as possible.

Answer Explanation:

A scientific argument should be based on measurable and observable facts such as the patient's current symptoms and health history. Discussing the patient's appearance or the doctor's feelings does not communicate a scientific argument. While insurance may be a factor in most healthcare systems, the status of the patient's Insurance does not communicate a scientific argument that justifies the need for the test

Therefore, the Correct Answer is C.

More Questions on TEAS 7 Science

  • Q #1: In general, where in the periodic table of elements are the elements with the largest atomic radii located?

    A. Upper-right corner

    B. Upper-left corner

    C. Bottom-left corner

    D. Bottom-right comer

    Answer Explanation

    In general, atomic radius increases moving down a group due to the increasing number of electron shells. In general, atomic radius decreases moving from left to right across a period due to the increasing number of protons in the energy level. Therefore, atoms of elements in the bottom-left corner of the periodic table tend to have the largest atomic radii.

  • Q #2: Which of the following molecules exhibits ionic bonding?

    A. NaCl

    B. CO2

    C. C6H12O6

    D. H2O

    Answer Explanation

    Sodium chloride exhibits lonic bonding due to the attraction between Na+ ions and Cl- ions.

    Typically, elements on the opposite sides of the periodic table (a metal and a nonmetal) form ionic bonds. Carbon dioxide, water, and glucose exhibit covalent bonding. Typically, elements on the same side of the periodic table (two or more nonmetals) form covalent bonds.

  • Q #3: What is most likely the pH of a solution containing many hydroxide ions (OH-) and few hydrogen ions(H+)

    A. 2

    B. 6

    C. 7

    D. 9

    Answer Explanation

    A solution that contains more hydroxide ions than hydrogen ions is a base, and bases have a pH greater than 7, so the only possible answer is choice D. 9.