Refer to the Following Information to Answer the Questions Below

question 11

Multiple Choice

Refer to the following information to answer the questions below.
Fossils of Lystrosaurus, a dicynodont therapsid, are most common in parts of modern-day South America, South Africa, Madagascar, India, South Australia, and Antarctica. It apparently lived in arid regions, and was mostly herbivorous. It originated during the mid-Permian period, survived the Permian extinction, and dwindled by the late Triassic, though there is evidence of a relict population in Australia during the Cretaceous. The dicynodonts had two large tusks, extending down from their upper jaws; the tusks were not used for food gathering, and in some species were limited to males. Food was gathered using an otherwise toothless beak. Judging from the fossil record, these pig-sized organisms were the most common mammal-like reptiles of the Permian.
-As rat pups mature, the growth of their snouts and tails outpaces growth of the rest of their bodies, producing the appearance of sexually mature males. It is found that sexually mature female rats prefer to mate with mutant, sexually mature males that possess snouts and tails with juvenile proportions. Which of the following terms is (are) appropriately applied to this situation?

• A)sexual selection
• B)paedomorphosis
• C)allometric growth
• D)B and C only
• E)A, B, and C

---

Definitions:

Reliable

Capable of being trusted or depended upon; consistently good in quality or performance.

Self-Reporting Instruments

Tools or questionnaires used for gathering data where participants report their own feelings, behaviors, or attitudes.

Communicable Diseases

Diseases that can be transmitted from one person to another, either directly through contact or indirectly through vectors.

Transmission

The act or process by which something is spread or passed from one person or thing to another.