Use the Following Information When Answering the Corresponding Questions)

question 8

Multiple Choice

Use the following information when answering the corresponding questions) .
The following questions) are based on information from Frank M. Frey, "Opposing Natural Selection from Herbivores and Pa May Maintain Floral- Color Variation in Claytonia virginica Portulacaceae) ," Evolution 5811) , 2004: 2426- 37.
-Claytonia virginica is a woodland spring herb with flowers that vary from white to pale pink to bright pink. This plant is primarily pollinated by a bee that prefers pink flowers to white flowers. Claytonia with pink flowers have a greater relative fruit set than Claytonia with white flowers. Nevertheless, the percentage of different flower colours remains stable in the study population from year to year. Which of these statements might explain this observation?

• A) Reproductive success does not affect evolution in this species.
• B) The white flowers have evolved pollinator resistance.
• C) Fitness is primarily determined by fruit set in this species.
• D) Flower colour is not heritable, but is instead environmentally determined.

---

Definitions:

Photoreceptors

Specialized cells or organs in organisms that respond to light, enabling vision or other light-based sensory processes.

Photopigment Rhodopsin

A light-sensitive pigment found in the rod cells of the retina, crucial for low-light vision.

Color Vision

The ability of the visual system to distinguish objects based on the wavelengths of the light they reflect, emit, or transmit.

Chemoreceptors

Sensory receptor cells or organs specialized in detecting chemical substances in the environment or the body.