Line 1: *Pneumonia may be caused by an infection or injury of the lungs. Lung injuries are treated with bronchodilatory treatment. Pneumonia can be treated with bronchodilatory treatment.*
*(C)*
Line 2: *What treatment can be used in treating pneumonia?
Options:
- (A) the respiratory system
- (B) a breathing mask
- (C) bronchodilatory treatment
- (D) aqueous solution
- (E) immunotherapy
- (F) radiation therapy
- (G) immune system
- (H) chemotherapy*

Logic of a solution: *Amphibians are the first true tetrapods, or vertebrates with four limbs. All frogs are amphibians. Animals in the frog family are the first true tetrapods.*
*(C)*
The original question: *The first tetrapods were
Options:
- (A) major threat to health
- (B) remains of prehistoric life
- (C) in the frog family
- (D) running and lifting
- (E) competing for resources
- (F) warm-blooded
- (G) objects that have mass
- (H) graptolites*

Line 1: *Behaviors that improve fitness increase through natural selection. Adaptation traits contribute to individual fitness and to the evolution of animal genetic resources. Behaviors can improve the evolution of animal genetic resources.*
*(F)*
Line 2: *The evolution of animal genetic resources can be impacted by:
Options:
- (A) extinction
- (B) Mars
- (C) competition
- (D) Darwin
- (E) agriculture
- (F) behavior
- (G) environment
- (H) Galapagos Islands*

Logic of a solution: *Populations of viruses do not grow through cell division because they are not cells. Mitosis is cell division. Populations of viruses do not grow through mitosis because they are not cells.*
*(G)*
The original question: *Which of the following do not grow using mitosis?
Options:
- (A) skin cells
- (B) genus
- (C) fungi
- (D) lung cells
- (E) blood cells
- (F) parasites
- (G) viruses
- (H) bacteria*

Line 1: *Male dogs use pheromones in urine to mark their territory. Pheromones are a sub-category of semiochemicals. Male dogs use semiochemicals in urine to mark their territory.*
*(D)*
Line 2: *What uses semiochemicals in urine to mark territory?
Options:
- (A) koalas
- (B) bacteria
- (C) humans
- (D) dogs
- (E) bears
- (F) cats
- (G) the Sun
- (H) rabbit*

Line 1: *Nephrons are the structural and functional units of the kidneys. Damage to the nephrons can be caused by conditions such as diabetes and high blood pressure . Damage to the structural units of the kidneys can be caused by high blood pressure ..*
*(H)*
Line 2:
*Damage to the structural units of the kidneys can be caused by ..
Options:
- (A) harmful substances
- (B) an area swollen with pus
- (C) a lot of human deaths
- (D) Pesticides
- (E) Heavy rains
- (F) Leptospirosis
- (G) Veins and arteries.
- (H) high blood pressure*