Tubes In The Body Of A Worm example essay topic
474 words
Earth Worm Direction Parts Function Digestive System - Prostomium - a small fleshy lobe that extends over the mouth, used to help dig through the soil - Mouth - the entrance for food into the digestive system, located under the prostomium - Pharynx - A tube at the beginning of the digestive tract that creates a sucking action to remove food particles from the soil, located just behind the mouth - Esophagus - a narrow passage in the digestive track that connects the pharynx to the crop - Crop - a temporary storage area in the digestive track, food waits here before it passes to the remainder of the digestive track - Gizzard - an area in the digestive track where strong muscles grind the food in preparation for digestion - Intestine - Nutrient digestion and absorption take place in this part if the digestive track. - Anus - Digestive wastes are expelled through this opening located on the posterior end of the worm. Nervous system - Brain - a center of nerve cells that coordinate all of the activities of the worms body - Ventral nerve cord - A cord of nerves that runs the length of the body along the bottom or belly of the worm. All nerve impulses to and from the brain are carried din this cord Circulatory System - Aortic Arches - a group of 5 muscular tubes that pump blood through the circulatory system of the worm - Ventral blood vessels - a tube structure that carries blood from the heart to the posterior of the worm located on the bottom of the worm, - Dorsal blood vessel - gathers blood from the capillaries in the body and returns it to the heart for recirculation located in the back or top of the worm Reproductive system - Seminal Vesicles (openings) - male reproductive organs - Ovary (oviduct ovaries) - egg sack, female reproductive organs Seminal Receptacles (openings) - temporary storage areas for the male sperm until the eggs are ready to be fertilized Other Systems - Nephridium - coiled tubes in the body of a worm that collect and excrete liquid wastes from the body of the worm. - Clitellum - a swollen area of band around the mid section of the body of the worm. Materials secreted from the clitellum form a cocoon in which the eggs are hatched and the young worms develop.
- Setae - Bristle structures found on the skin of the worm. Four pair of Satae are found on each segment except the first and last. Satae are used for movement. - Segments (somites) - The divisions in the skin of a segmented worm. The internal segments are called septum.
There can be over 100 segments in the body of a worm.
Things every student should keep in mind
- Free example essays found anywhere online are available to anyone, which makes them used, re-used, paraphrased, and abused millions of times.
- Watch out, some are poorly written!
- We strongly discourage you to submit free essays or any of their parts for credit at your school -- they are easily detected by PLAGIARISM CHECKERS.
- Get a brand-new, 100% original paper that will be written especially for you following YOUR EXACT instructions.
100% money back, no questions asked if you paper is plagiarized (this won't happen anyway).
We use a simple but effective principle: one satisfied customer will come back for more, but one who was cheated and misled will tell 10 others too.
Our clients are treated with the highest level of respect that a legitimate student deserves. You, as a customer, will feel this attitude starting from your first contact with our essay service and all the way through.
A significant percentage of cheap essay writing services have also been the source of complaints from students for selling cut and pasted work off the net -- this is a world away from the personalized essay service that EssayPride offers. All our guarantees are always kept -- we are nothing without quality, affordable prices, and the high degree of customer satisfaction!
What our customers say
Piotr S.
Toronto, Canada
I am an ESL student and I am only learning how to write good papers in English. Thanks to EssayPride I am mastering this skill much faster. They help me because they always respond any questions and explain me things I do not understand. They also strictly follow the deadlines and I am never late with my assignments. Thank you very much, guys, your hard work is appreciated. I will surely be ordering more.
Lindsay M.
Winston Salem, NC
Oh my Gosh! My life has become sooo much easier after I've come across this website. I am a working student, so sometimes I am too overwhelmed with so many things and I really need a hand with my papers. I am glad I have found a company I can trust. I have confidence in these guys, because they proved to be good quite a few times.
Kirk N.
Austin, TX
I never leave reviews for products or services because I am quite particular and picky. Surprisingly enough, EssayPride has managed to satisfy all of my requirements, even though I asked for several alterations to the paper they've sent initially. My assignments are quite complicated and it is essential to possess a certain level of knowledge in order to write a decent paper. These guys have managed, so I give them four stars.
Emma Ch.
Birmingham, UK
Customer service is very responsive to your queries, they answer any question within an hour. Even if you have a problem with an order, you can contact them and they will fix it promptly. The quality of writing is very good, writer knows what he is talking about. I had a very positive experience using this website, I will be a returning customer.
Travis J.
Perth, Australia
I used this website more than once and every time my experience turned out to be extremely positive. I think their price-quality ratio is very good, because I couldn't find anyone writing better than these guys, who would work for this money. Thank you!
Myung O.
Seoul, South Korea
I am a Korean student studying in the US. I would like to thank essaypride staff, especially writer Jeff P., for helping me out so much. My grades are good with all your help and I keep calm about the results of my year.
Boyi Zh.
St. Louis, MO
As probably any student, I was quite hesitant about asking somebody else to do my assignments at first. However, after EssayPride has sent me my first paper and I've read it, I understood that I could actually learn a lot from them. The research they've done was impressive and I understood the topic even better than after going to class and reading my textbook. I am not using this website to "cheat", I am using it as a tutoring service, they help me to understand the material better.