ATI TEAS 7
Biology
1. The phrase "survival of the fittest" refers to:
- A. Organisms with the most complex anatomical structures are more likely to survive and reproduce.
- B. Organisms that demonstrate the best adaptations to their environment have a higher chance of survival and reproduction.
- C. All organisms have an equal probability of survival and reproductive success regardless of their traits.
- D. Only the strongest and most aggressive individuals within a population will survive and reproduce.
Correct answer: B
Rationale: Rationale: The phrase "survival of the fittest" is often associated with the concept of natural selection, which was proposed by Charles Darwin. Natural selection is the process by which organisms that are best adapted to their environment are more likely to survive and reproduce, passing on their advantageous traits to the next generation. This process does not necessarily favor the most complex anatomical structures (option A) or the strongest and most aggressive individuals (option D). Instead, it emphasizes the importance of adaptations that enhance an organism's ability to survive and reproduce in a specific environment. Option C is incorrect because natural selection results in differential reproductive success based on an organism's traits, meaning that not all organisms have an equal probability of survival and reproductive success.
2. What is the process of cells restoring damaged or lost tissues called?
- A. Cell division
- B. Cell differentiation
- C. Cell growth
- D. Cell regeneration
Correct answer: D
Rationale: Rationale: A) Cell division refers to the process by which a cell divides into two daughter cells. B) Cell differentiation is the process by which cells become specialized for specific functions. C) Cell growth is the increase in cell size or number. D) Cell regeneration is the process of cells restoring damaged or lost tissues by replacing or repairing the damaged cells. This process is essential for healing wounds and maintaining tissue integrity.
3. Which molecule is responsible for storing and providing a quick source of energy during short bursts of intense physical activity, such as weightlifting or sprinting?
- A. ATP (Adenosine Triphosphate)
- B. Glucose
- C. Myoglobin
- D. Lactic Acid
Correct answer: a
Rationale: The correct answer is A: ATP (Adenosine Triphosphate). ATP is known as the energy currency of the cell and is responsible for storing and providing quick energy during short bursts of intense physical activity. When muscles require immediate energy for activities like weightlifting or sprinting, ATP is broken down to release energy rapidly. Glucose is a source of energy but needs to be converted into ATP before it can be used by the muscles. Myoglobin is a protein that stores oxygen in muscle cells, not energy. Lactic Acid is produced during intense exercise but is not a direct source of quick energy like ATP.
4. What does "monophyletic" mean in the context of classification?
- A. A group with a single representative organism
- B. A group with diverse and unrelated members
- C. A group with similar functions but different origins
- D. A group descended from a common ancestor
Correct answer: D
Rationale: Rationale: In the context of classification, "monophyletic" refers to a group that includes a common ancestor and all of its descendants. This group shares a single evolutionary origin and forms a complete branch on a phylogenetic tree. Monophyletic groups are considered natural and valid taxonomic units because they reflect evolutionary relationships accurately. Option D is the correct choice as it accurately defines the term "monophyletic" in the context of classification.
5. What is the best way to punctuate the dialogue "Are you coming?" she asked. "Maybe," I replied.
- A. "Are you coming?" she asked? "Maybe," I replied.
- B. "Are you coming?" she asked. "Maybe," I replied.
- C. "Are you coming?" she asked, "Maybe," I replied.
- D. "Are you coming?" she asked, "Maybe," I replied.
Correct answer: B
Rationale: Each speaker's words need quotation marks, and the question mark should go inside the closing quotation mark of the question.
6. Rectangle: A picture frame measures 15cm by 20cm. What is its perimeter?
- A. 30cm
- B. 55cm
- C. 65cm
- D. 75cm
Correct answer: C
Rationale: Add the lengths of all sides: perimeter = 2 (length + width) = 2 (15cm + 20cm) = 65cm.
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