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asciandwildlife
asciandwildlife, Master's Degree
Category: Writing Homework
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Experience:  Published Researcher, Current PhD in Environmental Science Candidate
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Locate a diagram of the internal anatomy of an organism with

Resolved Question:

Locate a diagram of the internal anatomy of an organism with the main organs and structures labeled.

Write a 350- to 700-word paper explaining how the organism in the diagram has evolved physiologically to become suited to its environment.

Reference the diagram in your paper.

References must be included, and these should be formatted by the APA guidelines (references do not count toward the word total).

Format your paper consistent with APA guidelines.

This is for my Science class and must be original work.
Submitted: 2 years ago.
Category: Writing Homework
Expert:  asciandwildlife replied 2 years ago.
Hello,
Thank you for using JA. Please let me know when this assignment is due.
Customer: replied 2 years ago.
It is due Wednesday, April 25
Expert:  asciandwildlife replied 2 years ago.
Okay, I will make sure you have this assignment by your deadline :)
Customer: replied 2 years ago.
Thank you very much!
Expert:  asciandwildlife replied 2 years ago.

One of the most fascinating organisms on earth can be found in your very own home. If you own an aquarium or have ever visited an aquarium, lake or ocean, the chances are you have observed a fish. Fish have a very unique anatomy and physiology so that they can thrive in underwater environments.

Like humans fish have a closed circulatory systems, but the way that blood flows throughout the body is different and perhaps even simpler. In a fish blood flows from the heart, to the gills, to the body and back. Gills are analogous to the lungs of humans but the way they take in oxygen is very different. Water flows over the gills and the gills absorb dissolved oxygen.

Fish sense their environment in a number of different ways that are unlike humans. Some fish can smell their environment through their skin in addition to using their nares. Additionally fish can sense electric fields and their environment using a structure called a lateral line. These structures are unique to fish and allow them to perceive their environment and live successfully.

Have you ever wondered how fish swim? Fish maintain their buoyancy through an anatomical structure called a swim bladder. Essentially this is like a built into float that can inflate and deflate to help achieve neutral buoyancy at different depths. Some fish have swim bladders, while others that dwell on the bottom of the sea floor, which do not move up and down the water column, do not have a swim bladder. Interestingly the swim bladder also helps the fish to produce sounds. These sounds can be warning and mating signals to other fish and the types of sounds are specific to particular fish species. To help fish swim they have a number of fins (dorsal, ventral, pelvic, anal and caudal) and these fins could be rayed or composed of adipose tissue. Some fish have fins that can retract to help reduce drag while swimming, and some fish only have a couple types of fins, which suit their body form and life style. Fish are incredibly diverse! One suborder, Percoida, contains over 3,000 species and 78 families!

The next time you see a fish, I am sure you will now appreciate how their form has made them suitable for a life underwater. They are truly fascinating creatures!

Dissection Images: http://australianmuseum.net.au/Dissection-of-a-Blue-Mackerel-Scomber-australasicus

Helfman et al. 2009. The diversity of fishes: Biology, evolution and ecology. Wiley-Blackwell, London. 736pp.

asciandwildlife, Master's Degree
Category: Writing Homework
Satisfied Customers: 1540
Experience: Published Researcher, Current PhD in Environmental Science Candidate
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