ATI TEAS 7
Anatomy
1. Deficiency of which hormone can lead to stunted growth and developmental delays in children?
- A. Estrogen
- B. Testosterone
- C. Growth hormone
- D. Insulin
Correct answer: C
Rationale: The correct answer is C: Growth hormone. Growth hormone plays a crucial role in stimulating growth, cell reproduction, and regeneration in humans. Deficiency of growth hormone can lead to stunted growth and developmental delays in children. Estrogen and testosterone are sex hormones responsible for sexual development and characteristics, but they do not directly impact growth. Insulin is a hormone that regulates blood sugar levels and is not associated with stunted growth or developmental delays.
2. What is the main purpose of biological classification?
- A. To create a rigid and unchanging system for labeling organisms
- B. To understand the diversity and interconnectedness of life
- C. To simplify nature into neat and tidy categories
- D. To assign organisms to specific ecological niches
Correct answer: B
Rationale: Rationale: Biological classification, also known as taxonomy, is the science of categorizing and organizing living organisms based on shared characteristics. The main purpose of biological classification is not to create a rigid and unchanging system (option A) or to simplify nature into neat and tidy categories (option C). Instead, it aims to help us understand the diversity of life on Earth and how different organisms are related to each other. By classifying organisms into groups based on their evolutionary relationships, we can gain insights into the interconnectedness of life and better appreciate the complexity and beauty of the natural world. Assigning organisms to specific ecological niches (option D) is more related to ecological studies rather than biological classification.
3. In the sentence "The house was dilapidated," what effect does the word "dilapidated" have on the reader's understanding?
- A. Creates a sense of mystery.
- B. Emphasizes the large size of the house.
- C. Suggests the house is in poor condition.
- D. Implies the house is haunted.
Correct answer: C
Rationale: The word "dilapidated" specifically describes the house's deteriorating state.
4. When sodium hydroxide (NaOH) reacts with hydrochloric acid (HCl), the resulting product is:
- A. Hydrogen gas and sodium chloride (NaCl)
- B. Chlorine gas and sodium oxide (Na2O)
- C. Sodium metal (Na) and water (H2O)
- D. No reaction occurs.
Correct answer: A
Rationale: This is a classic neutralization reaction, forming water and a salt (sodium chloride).
5. What is the term for the chemical reaction that involves the loss of electrons?
- A. Reduction
- B. Oxidation
- C. Neutralization
- D. Precipitation
Correct answer: b
Rationale: Oxidation is the chemical reaction that involves the loss of electrons. The other choices describe different types of reactions.
6. Identify the antonym of the word "pensive":
- A. joyous
- B. thoughtful
- C. curious
- D. introspective
Correct answer: A
Rationale: "Joyous" is the opposite of "pensive," which means thoughtful and slightly melancholy.
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