ATI TEAS Science

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: A

Rationale: The correct answer is A: Merkel's discs. Merkel's discs are located in the epidermis and respond to light touch and slower vibrations due to their sensitivity to sustained pressure. Pacinian corpuscles (B) detect deep pressure and fast vibrations. Meissner's corpuscles (C) are responsible for detecting light touch but not vibrations. Ruffini endings (D) respond to skin stretch and warmth but not specifically to light touch and slower vibrations. Therefore, Merkel's discs are the most appropriate choice for receptors that respond to light touch and slower vibrations.

Correct Answer: A

Rationale: The correct answer is A: A plasma membrane. Both prokaryotes and eukaryotes have a plasma membrane as their outer boundary. The plasma membrane is essential for maintaining cell integrity, controlling the passage of molecules in and out of the cell, and facilitating communication with the external environment. Prokaryotes lack a nucleus enclosed by a membrane (choice B), which is a defining feature of eukaryotic cells. Eukaryotes have organelles (choice C) that are membrane-bound structures, unlike prokaryotes that lack membrane-bound organelles. A nucleoid (choice D) is a region in prokaryotic cells where the genetic material is located, but it is not enclosed by a membrane like the nucleus in eukaryotic cells.

Correct Answer: A

Rationale: The correct answer is A because all types of muscle tissue share the properties of being contractile (ability to contract), excitable (responsive to stimuli), elastic (ability to return to original shape), and extensible (ability to stretch). Choice B is incorrect because voluntary is not a shared property of all muscle tissues. Choice C is incorrect because voluntary is not a shared property of all muscle tissues. Choice D is incorrect because voluntary is not a shared property of all muscle tissues.

Correct Answer: D

Rationale: During meiosis, a parent cell undergoes two rounds of cell division resulting in the formation of four daughter cells. 1. In the first division (meiosis I), homologous chromosomes separate, resulting in two daughter cells with half the number of chromosomes as the parent cell. 2. In the second division (meiosis II), sister chromatids separate, producing a total of four daughter cells, each with a haploid set of chromosomes. Therefore, the correct answer is D: Four. Choices A, B, and C are incorrect because meiosis specifically leads to the formation of four daughter cells, not one, two, or three.