ATI TEAS Science

Correct Answer: B

Rationale: The final phase of mitosis is Telophase. In Telophase, the nuclear envelope reforms around the separated chromatids, chromosomes unwind into chromatin, and the nucleolus reappears. This marks the end of nuclear division. Prophase is the initial phase where chromosomes condense. Anaphase is when chromatids separate and move to opposite poles. Metaphase is when chromatids align at the center. Telophase is the only phase where the nuclear envelope reforms and the nuclear division is completed.

Correct Answer: A

Rationale: The correct answer is A: A control. A control in an experiment is used as a standard for comparison because it remains unchanged and is not subjected to the experimental treatment. By comparing the results of the experimental group to the control group, researchers can determine the effectiveness of the treatment. Variables (B) and constants (C) are factors that are manipulated or kept consistent, respectively, in an experiment but do not serve as a standard for comparison. Collected data (D) is the outcome of the experiment and is not used as a standard for comparison.

Correct Answer: C

Rationale: The correct answer is C: An inference. This statement involves drawing a conclusion based on evidence, rather than directly observing the fact. The conclusion that someone must have forgotten to water the flower is inferred from the observation that the flower is dead. It goes beyond simple observation (Choice B) and does not involve categorizing or grouping (Choice A) or collecting items (Choice D). Inference involves using reasoning and evidence to make an educated guess or interpretation, which fits the scenario described in the statement.

Correct Answer: C

Rationale: Nociceptors detect pain. They are specialized nerve endings that respond to potentially harmful stimuli. When activated, nociceptors send signals to the brain, resulting in the sensation of pain. Deep pressure (A) and vibration (B) are detected by other types of receptors, while temperature (D) is detected by thermoreceptors. Therefore, the correct answer is C because nociceptors specifically respond to pain stimuli.

Correct Answer: B

Rationale: A neutralization reaction involves the combination of an acid and a base to produce a salt and water. This type of reaction is characterized by the formation of a salt through the exchange of ions. In contrast, oxidation reactions involve the loss of electrons, synthesis reactions involve the combination of substances to form a new compound, and decomposition reactions involve the breakdown of a compound into simpler substances. Therefore, the correct answer is B because it specifically results in the production of a salt.