ATI TEAS 7
Biology
1. Which statement accurately describes the Linnaean system of classification?
- A. It focuses on evolutionary relationships between organisms
- B. It uses dichotomous keys for identification
- C. It groups organisms based on shared functions
- D. It emphasizes a hierarchical ranking system
Correct answer: D
Rationale: Rationale: The Linnaean system of classification, developed by Carl Linnaeus, is based on a hierarchical ranking system where organisms are grouped into categories based on shared characteristics. This system organizes organisms into a hierarchy of increasingly specific categories, from broad to narrow, such as kingdom, phylum, class, order, family, genus, and species. This hierarchical approach allows for the systematic organization and classification of a wide variety of organisms based on their similarities and differences.
2. Which term describes the resistance of a substance to being hammered into different shapes?
- A. Viscosity
- B. Ductility
- C. Malleability
- D. Conductivity
Correct answer: c
Rationale: Malleability refers to the resistance of a substance to being hammered or pressed into different shapes without breaking.
3. Identify the bone with the greatest length in the human body.
- A. Femur (Thigh bone)
- B. Humerus (Upper arm bone)
- C. Tibia (Shin bone)
- D. Scapula (Shoulder blade)
Correct answer: A
Rationale: The femur, exceeding a meter in length, bears significant weight and enables locomotion.
4. Two experiments investigating the same phenomenon produce conflicting results. What is the most appropriate next step?
- A. Ignore the conflicting results and focus on the more convincing experiment.
- B. Conduct a combined experiment incorporating elements of both.
- C. Attack the methodology of the experiment with conflicting results.
- D. Accept the more recent experiment as definitively correct.
Correct answer: C
Rationale: When faced with conflicting results from two experiments, it is important to critically evaluate the methodology of both experiments. By examining the experimental design, variables controlled for, sample sizes, and potential sources of bias, one can better understand the reasons behind the discrepancies. Attacking the methodology of the experiment with conflicting results can help identify potential flaws or limitations that may explain the differences in outcomes. This approach allows for a more informed decision on how to proceed, rather than simply ignoring or accepting one set of results over the other.
5. Based on the passage, which statement is MOST likely to be true about the author's stance on social media?
- A. It should be completely banned due to its overwhelmingly negative impact.
- B. It can be a valuable tool but needs stricter regulations to address emerging issues.
- C. Its benefits outweigh its drawbacks, and concerns about its use are exaggerated.
- D. Technology alone cannot solve the problems associated with social media use.
Correct answer: B
Rationale: The emphasis on critical thinking and responsible online behavior suggests an acknowledgment of social media's potential while advocating for addressing its downsides, aligning with B.
6. The primary function of the respiratory system is to:
- A. Maintain body temperature
- B. Deliver oxygen to the bloodstream and remove carbon dioxide
- C. Produce antibodies for the immune system
- D. Break down food molecules for energy
Correct answer: B
Rationale: The correct answer is B: 'Deliver oxygen to the bloodstream and remove carbon dioxide.' The primary function of the respiratory system is to facilitate gas exchange. When we breathe in, oxygen is inhaled and transported to the bloodstream, where it is delivered to cells for energy production. Simultaneously, carbon dioxide, a waste product of cellular metabolism, is removed from the bloodstream and exhaled. This process is vital for sustaining life and maintaining proper oxygen levels in the body. The respiratory system does not primarily regulate body temperature, produce antibodies, or break down food molecules for energy, making options A, C, and D incorrect.
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