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Introduction: Primate Hand FeaturesThe primary features that define primates as a taxonomic order are mainly found in the skull and on the hands and feet. The reason for this has to do with the fact that the hands and feet and the head are the areas of the body that interact with the environment the most and as such are are subject to the greatest amount of selective pressures.Nails, opposable thumbs, friction ridges among other are anatomical features that have been selected for within the primate lineage and assist in the survivability of young primates.What you are doingYour task is to explore a primate hand features and explain how that primate hand feature enhance fitness.Before you begin your task make sure you do the following thingsRead lecture notes on primate taxonomy and chapter 6What you have to do for pointsMake sure you answer all of the following questions for full points.What does the arboreal hypothesis suggest about the reason why primates have the unique features, such as opposable thumbs, that they have on their hand?
Explain how primate hand features increase fitness and give one example. When writing about your example name the hand feature that you have chosen and explain clearly why it increase fitness in a tree environment.
Conjecture what would happen if a primate infant did not possess your chosen primate hand features. Answer this question with the survivability of the infant in mind.
Grading rubric Click on the “Gear icon” located in the top right-hand corner and then click on “Show Rubric” to view the grading requirements for this discussion. Tips for successPlease keep your answer to only what is asked in the assignment.
I recommend composing your content offline in a text editor and then copy and paste the text into your reply post. If something happens you will have an offline copy of all of your hard work!
I highly recommend using Google Docs (Drive) to compose offline, as Google plays well with web-based forums. If you are using Microsoft Word to compose offline, you may need to do some editing to the format when you paste it into the reply.
RubricPrimate hand featuresPrimate hand featuresCriteriaRatingsPtsThis criterion is linked to a Learning OutcomeObjectives – to understand primate hand features as adaptations to an arboreal environment.Student will be able to explain the importance of the arboreal hypothesis in explaining primate hand features2 ptsNo DescriptionStudent explained how the arboreal hypothesis is able to explain primate specific hand features1 ptsNo DescriptionStudent described arboreal hypothesis but did not explain its importance to primate hand featrues0 ptsNo MarksStudent did not explain what the arboreal hypothesis is or its importance to hand features2 ptsThis criterion is linked to a Learning OutcomeObjectives – to understand primate hand features as adaptations to an arboreal environment.Student will explain how primate hand features increase fitness and give one examples.4 ptsNo DescriptionStudent was able to explain how primate hand features increase fitness and gave an example of a primate hand feature that clearly increase fitness in a tree environment.2.67 ptsNo DescriptionStudent explained how primate hand features increase fitness but did not give an example that showed how primate hand features increase fitness.0 ptsNo MarksStudent made no attempt at explaining how primate hand features increase fitness.4 ptsThis criterion is linked to a Learning OutcomeObjectives – to understand primate hand features as adaptations to an arboreal environment.Student will be able to explain the importance of the arboreal hypothesis in explaining primate hand features2 ptsNo DescriptionStudent was able to explain what would happen if a primate infant did not possess student’s chosen primate hand features.0 ptsNo MarksStudent did not explain what would happen if a primate infant lacked primate hand features.2 ptsTotal Points: 8
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