Evolution in animal diversity

Notes: Although there is a minimum word count of 2,000 words for this exam, you will find that it is likely going to require more than
the minimum to fully answer the question. You may not copy or quote from any source. All information must be re-written in your
own words. Answer all questions. Point value: 100 points. Read the course Style Guide for detailed instructions of structure and
format. Exams must be submitted by the due date and time. Late Exams are NOT accepted without prior approval.

Do not include the question(s) on your essays and exams.
Question 1: Vertebrate Circulatory Patterns (25 points)
Describe the changes in circulation patterns of chordates from the most primitive to the most advanced. Include in your answer:
a. the pattern of flow and function of blood in the Lancelet, Branchiostoma lanceolatum
b. the general circulation pattern of fishes and the special case of fishes with lungs or swim bladders
c. a description of gills and countercurrent exchange for obtaining oxygen
d. the transition in circulation pattern from tadpole to adult frog during metamorphosis
e. the circulatory adaptations of the amniotes: reptiles, birds and mammals

Don't use plagiarized sources. Get Your Custom Essay on
Evolution in animal diversity
Just from $13/Page
Order Essay

Question 2: From Amniote Egg to Mammals (25 points)
Describe amniote eggs and the transition from animals that lay eggs to placental mammals. Include in your answer:
a. the functions of the amniote egg membranes in the eggs of birds and reptiles
b. the production of bird egg shells at the molecular level and in the reproductive tracts of birds and reptiles,
c. the adaptations seen in the physical fossil record that supports the transition from pre-mammal synapsid egg-layers to
modern, placental mammals that nurse their young. For each adaptation, explain how the fossil record supports the
transition to endothermic homeothermy (warm-bloodedness”).

Question 3: Bird Flight: Mechanics, Weight, Balance and Power (25 points)
Describe flight mechanics and adaptations for flight in birds. Include in your answer:
a. the modern explanation of flight mechanics as described in the text,
b. a description of homeostasis and endothermic homeothermy
c. descriptions of adaptations for flight that reduce weight and those that contribute to balance around the center of gravity,
d. descriptions of mechanisms that increase power (physiological and structural properties, such as food selection, respiratory
refinements, heart rate, mechanical leverage, etc.).

Question 4: Return to Water (25 points)
Describe the adaptations of and challenges to Southern Sea Otters for a return to a life in the sea. Include in your answer:
a. a description of the size, shape, and specialized structures of the Sea Otter body for living in the North Pacific Ocean
b. a description of otter feeding structures and feeding behavior
b. methods by which Sea Otters conserve heat and maintain thermal homeostasis
c. the factors that Sea Otters face as challenges to their survival

Immediately following the essay, two lines below the last line of your essay, list all sources used in writing your essay to answer the
question. Do not use in-text citations and do not use footnotes. Simply list your sources in this “References” section. You must have
a References section with at least five references which you have used in preparing your answers: the course textbook, and at least
four additional sources. If you do not include a References section, you will lose 10 points (2 points for each missing source). Be sure
to include the References section with your submission to Turnitin. If you forget, you are able to re-submit until the deadline, but not

Grab 16% Discount On This Paper
Pages (550 words)
Approximate price: -

Why Choose Us

Quality Papers

ACME Homework provides the best top-grade academic writing services in compliance with our customers’ instructions. Have your paper written by a certified professional online college homework help writer to produce only high-quality essays with zero plagiarism.

Professional Academic Writers

You can now choose from a pool of online college homework help writers. Choose your writer and have them write the best content for you. ACME Homework has, over the years, secured a team of the most reliable, experienced, and qualified writers. You can, therefore, trust that your assignment is in good hands.

Affordable Prices

We know that students have very limited budgets. And for that, we always strive to provide only the best, most affordable online college homework help services to our customers. Our goal is to provide top-quality assignment help services to all customers at the lowest, most affordable prices.

On-Time delivery

At Acmehomework.com, we pay strict attention to deadlines. We recommend you to check out clients’ reviews for assurance that we will complete your assignments within the set deadlines. You can, therefore, trust that your paper will be done within and before the set deadline. Until now, we have not missed a single deadline.

100% Originality

Our Acmehomework.com homework helper experts write only 100% original and plagiarism-free content for all of our clients. We also have a Quality Assurance Department team that goes through all work submitted by our writers multiple times. You can, therefore, rest assured that any signs of plagiarized or unoriginal content will be rejected before it reaches your portal.

Customer Support 24/7

Acmehomework.com expert writers are always available 24/7 for customers who need assistance with using our website. You don’t have to check your watch the next time you want to have your assignment written. Our customer support is always available round the clock and ready to listen to your queries. Feel free to contact us via the Chat window or support email: support@acmehomework.com.

Try it now!

Grab 16% Discount On This Paper

We'll send you the first draft for approval by at
Total price:

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

For years now, Acmehomework.com has stood as a leader in providing its customers with the best online college homework help service in the industry. And all you have to do is provide us with the details of your order. Leave everything else to us. We’ve always got you covered.


Essay Writing Services

Since we launched, Acmehomework.com deserved the best online “college homework help status” thanks to our essay ordering, writing, and delivery process. We deliver nothing but excellence in our results. Our essay writing services include impeccable grammar, zero-plagiarism, proper structure, and conformance to guidelines.


Admission and Business Papers

Our top-quality online college homework help services guarantee that you will be accepted into your desired university. You just need to fill out your admission and business papers, and our team of online homework help workers will handle the rest. We will help you achieve and secure the best positions in your admissions forms.


Editing and Proofreading

At Acmehomework.com, we have a skilled writing and editing team that’s dedicated to creating, editing, and restructuring for all types of papers. Our online college homework help editing and proofreading team will check, paraphrase, and correct any grammar mistakes on your paper before submitting the final document to you.


Technical Papers

At Acmehomework.com, we pride ourselves in having writers in almost all fields, even the most technical ones. You never have to worry about your paper being too technical for our certified online college homework help writers to handle. ACME Homework’s team of writers can handle even the most complex writers. We will match your paper to the most competent writer that we believe will handle your paper the best way possible.

                                                                                     Place Order