ATI TEAS 7
Biology
1. 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.
2. Which statement accurately describes the relationship between electron configuration and the periodic table?
- A. Elements within the same period have similar electron configurations.
- B. Elements within the same group have similar electron configurations in their outermost shell.
- C. Electron configuration has no influence on an element's position on the periodic table.
- D. The number of electron shells an element has determines its group on the periodic table.
Correct answer: B
Rationale: Elements within the same group have similar electron configurations in their outermost shell. This explains why elements in the same group often share similar chemical properties.
3. Which form of energy is associated with the motion of an object?
- A. Kinetic energy
- B. Potential energy
- C. Thermal energy
- D. Electrical energy
Correct answer: a
Rationale: Kinetic energy is the energy of motion possessed by an object.
4. A temporary loss of consciousness due to insufficient blood flow to the brain is called:
- A. Stroke
- B. Seizure
- C. Syncope (fainting)
- D. Coma
Correct answer: C
Rationale: The correct answer is C: "Syncope (fainting)". Syncope is a temporary loss of consciousness caused by insufficient blood flow to the brain. During syncope, there is a brief interruption in the brain's blood supply, leading to a temporary loss of consciousness and muscle tone. This is different from a stroke (A), which is caused by a blockage or rupture of blood vessels in the brain, resulting in permanent damage. Seizures (B) involve abnormal electrical activity in the brain and can cause a variety of symptoms, including loss of consciousness, but they are not specifically due to insufficient blood flow. Coma (D) is a state of prolonged unconsciousness where a person is unresponsive and cannot be awakened. Therefore, the most appropriate term for a temporary loss of consciousness due to insufficient blood flow to the brain is syncope.
5. Connective tissue provides support and connects other tissues. What is the main component that gives connective tissue its strength?
- A. Collagen fibers
- B. Epithelial cells
- C. Nerve cells
- D. Blood cells
Correct answer: A
Rationale: The main component that gives connective tissue its strength is collagen fibers. Collagen is a fibrous protein that is the most abundant protein in the human body, providing tensile strength and support to tissues. Collagen fibers are arranged in a parallel fashion, giving connective tissue its resilience and ability to withstand stretching forces. Epithelial cells are not the main component of strength in connective tissue; they are specialized cells that line the surfaces of organs and structures. Nerve cells are responsible for transmitting signals and do not contribute to the strength of connective tissue. Blood cells are not structural components of connective tissue but rather play a role in transportation and immune function.
6. The study of the geographical distribution of organisms and the factors that influence it is known as:
- A. Paleontology (the study of fossils)
- B. Taxonomy (the classification of organisms)
- C. Biogeography
- D. Population genetics
Correct answer: C
Rationale: Rationale: Biogeography is the study of the geographical distribution of organisms and the factors that influence their distribution patterns. This field of study examines how and why species are distributed where they are, considering factors such as historical events, ecological interactions, and physical geography. Paleontology (option A) is the study of fossils and the history of life on Earth, focusing on extinct organisms. Taxonomy (option B) is the science of classifying and naming organisms based on their characteristics. Population genetics (option D) is the study of genetic variation and evolutionary processes within populations of organisms. In this context, biogeography is the most appropriate choice as it specifically deals with the distribution of organisms in space and time.
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