The Fossils of Two Adult Birds Are Found in a Nest

question 21

Multiple Choice

The fossils of two adult birds are found in a nest containing several fossilized eggs.Physically,the bird fossils look very different.Scientists are most likely to classify these species using

• A) the biological species concept.
• B) DNA from the fossils.
• C) morphology of the fossils.
• D) evidence of reproduction.

---

Definitions:

Polyandry

A mating system where a female has multiple male partners at the same time or sequentially within a single breeding season.

Genetic Compatibility

The suitability between the genetic traits of two individuals, which enhances the likelihood of producing viable and fertile offspring.

Prediction

The act of forecasting or anticipating future events or trends based on current or past data.

Good Genes Hypothesis

A theory in evolutionary biology suggesting that individuals select mates based on traits that indicate genetic quality, leading to offspring with enhanced survival and reproductive success.