ATI TEAS 7
Scientific Reasoning
1. A study finds a correlation between increased ice cream consumption and lower crime rates. What is the MOST likely explanation for this observation?
- A. Ice cream directly reduces criminal behavior.
- B. People who commit crimes eat less ice cream.
- C. A third factor, like hot weather, influences both.
- D. The study design is flawed and the connection is false.
Correct answer: C
Rationale: The most likely explanation for the correlation between increased ice cream consumption and lower crime rates is a third factor influencing both variables. In this case, hot weather could be the common factor as both ice cream consumption and crime rates tend to increase during warmer months. This scenario illustrates the importance of considering confounding variables when interpreting correlations.
2. Which word in the sentence "The quick brown fox jumps over the lazy dog" demonstrates alliteration?
- A. quick
- B. brown
- C. fox
- D. jumps
Correct answer: A
Rationale: Alliteration is the repetition of the first consonant sound of words close together. In this case, "quick" and "brown" both start with the "k" sound.
3. Acknowledge the organ devoted to blood filtration.
- A. Liver
- B. Kidneys
- C. Spleen
- D. Pancreas
Correct answer: B
Rationale: The kidneys are the primary organs responsible for filtering blood and removing waste products, excess fluids, and toxins. They play a crucial role in maintaining the body's internal environment and regulating blood pressure.
4. Which organelle is responsible for breaking down macromolecules, such as proteins, carbohydrates, and lipids, into their smaller building blocks?
- A. Golgi apparatus
- B. Mitochondria
- C. Lysosomes
- D. Endoplasmic reticulum
Correct answer: C
Rationale: Rationale: Lysosomes are membrane-bound organelles containing digestive enzymes that break down macromolecules, such as proteins, carbohydrates, and lipids, into their smaller building blocks. These enzymes help in the process of intracellular digestion and recycling of cellular components. The Golgi apparatus is involved in processing and packaging proteins for secretion or for use within the cell. Mitochondria are responsible for producing energy in the form of ATP through cellular respiration. The endoplasmic reticulum is involved in protein synthesis and lipid metabolism.
5. When you push a book across a table, the book experiences an equal and opposite force from the table. Why doesn't the table move as well?
- A. The table is much heavier than the book.
- B. The force on the book acts in a different direction.
- C. The table has a much larger surface area, distributing the force over a wider area
- D. All of the above
Correct answer: C
Rationale: While Newton's third law states that for every action, there is an equal and opposite reaction, the unbalanced force acting on each object depends on their respective masses. The larger mass of the table (compared to the book) experiences a smaller acceleration, making its movement almost imperceptible.
6. Which statement is TRUE about valence electrons?
- A. They are located in the innermost electron shell.
- B. They have the highest binding energy to the nucleus.
- C. They are most likely to participate in chemical bonding.
- D. They have no influence on the element's chemical properties.
Correct answer: C
Rationale: They are most likely to participate in chemical bonding - Valence electrons occupy the outermost shell and are readily involved in forming bonds with other atoms.
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