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. A solution is considered saturated when...
- A. More solute can be dissolved
 - B. The solvent starts to evaporate
 - C. The solution becomes cloudy
 - D. It reaches a specific temperature
 
Correct answer: B
Rationale: The correct answer is B: 'The solvent starts to evaporate.' A solution is considered saturated when the solvent can no longer dissolve any more solute at a given temperature. When the solvent starts to evaporate, it means that the solution is becoming more concentrated and reaching its saturation point. This is a key indicator of a saturated solution. The other options do not accurately describe the concept of a saturated solution, making them incorrect choices.
3. A blog post criticizes a scientific study due to the author's political views. Is this a valid critique?
- A. Yes, if the author identifies specific flaws in the methodology.
 - B. Yes, if the author disagrees with the study's conclusions.
 - C. o, scientific evaluation should be based on evidence, not personal beliefs.
 - D. No, unless the author has scientific expertise themselves.
 
Correct answer: C
Rationale: Criticism in science should focus on methodology, data analysis, and evidence, not personal agendas or political opinions.
4. Positive integers are greater than zero. Which of the following expressions results in the largest positive number?
- A. (2 + 3)^2
 - B. 5 x 7 + 2
 - C. 10^2 - 4^2
 - D. (8 - 1) x 3
 
Correct answer: C
Rationale: 10^2 - 4^2 = 100 - 16 = 84
5. What is the term for the maximum amount of solute that can dissolve in a solvent at a specific temperature and pressure?
- A. Molarity
 - B. Solubility
 - C. Concentration
 - D. Saturation
 
Correct answer: b
Rationale: Solubility is the maximum amount of solute that can dissolve in a solvent at a specific temperature and pressure. The other choices do not accurately define solubility.
6. What is the term for an organism with two different alleles for a gene?
- A. Homozygous
 - B. Heterozygous
 - C. Dominant
 - D. Recessive
 
Correct answer: B
Rationale: An organism with two different alleles for a gene has a mixed genotype and may exhibit either the dominant or recessive trait depending on the specific gene and its alleles.
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