12. According to the passage, which statement about hybrid lovebirds is true?
Answer: C
Nest-building behavior in hybrid lovebirds is a mixture of the parents' behaviors.
Hybrid lovebirds exhibit a unique nesting behavior that combines traits from both parent species. They attempt to cut long strips of material like the peach-faced lovebird but struggle to carry it in their beaks, leading to difficulties in nest construction.
A) Nest-building behavior can be used to determine evolutionary relationships between lovebird species.
This statement, while true in a broader context, does not specifically address the behavior of hybrid lovebirds. The passage focuses on the behaviors of hybrid offspring rather than their role in determining evolutionary relationships.
B) Hybrid lovebirds use nest-building material in ways they learn from the parents.
This option is incorrect as the passage indicates that the nest-building behaviors of lovebirds are genetic rather than learned. Therefore, hybrid lovebirds do not mimic learned behaviors from their parents.
C) Nest-building behavior in hybrid lovebirds is a mixture of the parents' behaviors.
This statement accurately reflects the passage's content, which describes how hybrid lovebirds combine the nest-building attempts of both parent species. They cut long strips like the peach-faced lovebird yet struggle to carry them effectively like Fischer's lovebird.
D) Hybrid lovebirds build complex nests using smaller pieces of nest-building material.
This statement is incorrect. The passage describes that hybrid lovebirds struggle with nest-building and do not successfully construct complex nests. Instead, they are hindered by their mixed behaviors, which prevent them from effectively using either parent's method.
Conclusion
The correct answer, C, is supported by the description of hybrid lovebirds' nest-building attempts that reflect a combination of their parents' behaviors. All other options either misinterpret the information in the passage or fail to correctly characterize the hybrid lovebirds' nesting challenges. Thus, understanding the genetic basis of their behaviors is key to recognizing the complexities in their nesting habits.