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Robert Has Taken Up Bicycle Riding as a Hobby and as a Way

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Robert has taken up bicycle riding as a hobby and as a way to maintain his physical stamina.He understands he will need to make sure he gets adequate water when he is bike riding.He wants to buy a hydration system.Having gathered a great deal of information,he has decided to compare three systems-- Waterbags for Roadies,Supertanker Hydropacks,and Fast Water.Robert is in the stage of his purchase decision.


Definitions:

Directional Selection

Directional selection refers to a process in evolutionary biology where an extreme phenotype is favored over other phenotypes, causing the allele frequency to shift over time in the direction of that phenotype.

Hawaiian Honeycreepers

A group of small, colorful birds native to Hawaii, known for their diverse beak shapes and sizes, adapted to different feeding habits and ecological niches.

Ecological Niches

The role and position a species occupies in its environment, including all interactions with biotic and abiotic factors.

Monophyletic Group

An ancestor in which a derived trait evolved, together with all of its descendants.

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