An experimental method to determine the traits used by the pollinators to distinguish between the different species of Columbine ( Aquilegia ) flowers. Introduction: The Columbine flowers are subdivided into various species, each differing by different flower orientation, different spur length, color, and fragrance. These characters are used by pollinators to distinguish between different species and maintain reproductive isolation of each particular species. This reproductive isolation between columbine flowers caused by the pollinators lead to the speciation of different species of columbine flowers.

Question

In the experiment conducted to test why individuals in the tree species Fuschsia excorticata retain flowers after they turn red even though the trees pollinate and offer a nectar reward only when flowers are green (Figure attached 10.28 first tested the 'pollinator-attraction' hypothesis that red flowers attract pollinators: once drawn to a tree, pollinators could forage on the green flowers still present, increasing overall pollination efficiency. Please assess the lowercase-Roman-numeral-labelled statements that appear immediately below and click the uppercase-letter-labelled response that appears below and conveys the most accurate information. i. If the pollinator-attraction hypothesis were correct, then green flowers surrounded by red flowers should receive more pollen than should green flowers surrounded by only green flowers. ii. The prediction in statement i could be tested by removing red flowers from some trees, forming one experimental group, and leaving red flowers on…

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Question

Chapter 22.4, Problem 2R

Summary Introduction

To review:

An experimental method to determine the traits used by the pollinators to distinguish between the different species of Columbine (Aquilegia) flowers.

Introduction:

The Columbine flowers are subdivided into various species, each differing by different flower orientation, different spur length, color, and fragrance. These characters are used by pollinators to distinguish between different species and maintain reproductive isolation of each particular species. This reproductive isolation between columbine flowers caused by the pollinators lead to the speciation of different species of columbine flowers.

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In the experiment conducted to test why individuals in the tree species Fuschsia excorticata retain flowers after they turn red even though the trees pollinate and offer a nectar reward only when flowers are green (Figure attached 10.28 first tested the 'pollinator-attraction' hypothesis that red flowers attract pollinators: once drawn to a tree, pollinators could forage on the green flowers still present, increasing overall pollination efficiency. Please assess the lowercase-Roman-numeral-labelled statements that appear immediately below and click the uppercase-letter-labelled response that appears below and conveys the most accurate information. i. If the pollinator-attraction hypothesis were correct, then green flowers surrounded by red flowers should receive more pollen than should green flowers surrounded by only green flowers. ii. The prediction in statement i could be tested by removing red flowers from some trees, forming one experimental group, and leaving red flowers on…

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