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With neither…nor constructions that join a plural subject and a singular subject, the verb agrees with the noun closest to it (the proximity rule). In B, the noun immediately before the verb is physician (singular), so the correct verb is is—“Neither the nurses nor the physician is available.” In C, the nearer noun is nurses (plural), so the verb should be are; using is is incorrect. A incorrectly uses are because the nearer subject is singular (physician). D mixes past tense (was) and again fails proximity agreement, since the nearer noun is plural (nurses), which would take were. TEAS tests this pattern alongside similar traps (e.g., either…or, compound subjects with as well as, and collective nouns like “team”). A quick technique is to cover the first subject and read the verb with the second subject alone: “nor the physician is…” (correct for B) vs “nor the nurses is…” (incorrect for C). Maintain consistent tense as well as number. Clear agreement matters in clinical documentation where ambiguity about actors (nurse vs. provider) can affect responsibility and timing.

First identify the base noun and whether it’s singular or plural. Here, we refer to more than one nurse, so the base plural noun is nurses. To form the plural possessive, add an apostrophe after the plural s: nurses’. Therefore, nurses’ schedules correctly shows that the schedules belong to multiple nurses. Option B (nurse’s schedules) is singular possessive, meaning the schedules of one nurse—mismatched with the plural context. Option A mangles both number and placement (“nurses schedule’s”) and also misplaces the apostrophe relative to the word owning the schedules. Option D places the apostrophe after schedules, implying the schedules possess something, which breaks the intended meaning. TEAS English often tests apostrophes: singular possessive = add ’s (e.g., patient’s chart); plural ending in s = add apostrophe only (e.g., patients’ charts); irregular plurals not ending in s (children) take ’s (children’s).

Volume of a cylinder: (V = \pi r^2 h). Compute (r^2 = (1.2)^2 = 1.44\ \text{cm}^2). Multiply by height: (1.44 \times 7.0 = 10.08\ \text{cm}^3). Multiply by (\pi \approx 3.1416): (10.08 \times 3.1416 \approx 31.7\ \text{cm}^3). Because (1\ \text{cm}^3 = 1\ \text{mL}), capacity is about 31.7 mL, which rounds to 32 mL—option C. Option A (25 mL) underestimates, likely from using (r) instead of (r^2) or (\pi \approx 3). B (30 mL) is a rougher underestimate. D (40 mL) overshoots and would require a larger radius or height. TEAS geometry conversions frequently connect solid volume to clinical units (mL). The most common error is forgetting to square the radius; note how small changes in (r) impact (r^2). A quick estimation check: (\pi \approx 3), so (V \approx 10.08 \times 3 \approx 30\ \text{mL}); using the more precise 3.1416 nudges the value to ~31.7 mL, supporting 32 mL as the correct rounded capacity.

With X-linked recessive inheritance, sons receive their Y chromosome from the father and their single X from the mother. A carrier mother (XᴺXᶜ) produces two types of eggs in equal proportions: Xᴺ and Xᶜ. A son’s genotype must be X?Y; because the father contributes Y only to sons, the determining factor is which maternal X they inherit. Half of sons receive Xᴺ (genotype XᴺY → unaffected), and half receive Xᶜ (genotype XᶜY → affected), making the probability 50% for sons specifically—answer C. Note the difference between conditional and overall child probability: if the question asked for any child being affected, you would consider sex as well (sons = 1/2 of children, affected sons = 1/2 of sons → 1/4 of all children). Daughters from this cross (Xᴺ from father + Xᴺ or Xᶜ from mother) are either XᴺXᴺ (unaffected) or XᴺXᶜ (carriers), but not affected because they would need two recessive alleles (XᶜXᶜ). TEAS genetics often tests Punnett reasoning: list parental gametes, construct outcomes, and match probabilities to the asked subset (sons vs. all children).

Author’s purpose questions ask why the text exists. The sentence links a recommended action (“replace 30 minutes of screen time with brisk walking”) to desirable outcomes (“improves mood,” “reduces resting blood pressure”). That pairing is characteristic of persuasive/behavior-change messaging (C). Option A is unsupported; there is no humorous tone. Option B would require mechanistic explanations (ATP yield, mitochondrial function), which are absent. Option D is a comparison not present in the text; the column doesn’t contrast activities, it recommends a specific substitution. On TEAS, scan for imperatives or implied directives plus benefit statements—a hallmark of persuasion. If the passage simply provided neutral facts or definitions, the purpose would be “inform.” When it pairs an action with concrete benefits to motivate change, select “persuade.” Summarize in your own words: “Walk instead of some screen time to feel better and lower BP”—this mirrors the intended purpose.