bio post lab 6

docx

School

Seton Hall University *

*We aren’t endorsed by this school

Course

3434

Subject

Biology

Date

Feb 20, 2024

Type

docx

Pages

Uploaded by AdmiralWillpowerSeahorse20

Jada Porter Biology Lab Section KK October 22 nd , 2018 Post Lab 6: Survey of Animals I 1. How do cnidarians respond to mechanical and chemical stimulations?  Cnidarians discharge in response to mechanical and chemical stimulations. 2. Where are mouth, pharynx, eyespot, and auricles located on the Planaria? What are the functions of these structures?  All of these structures are located in the center of the Planaria. The mouth is used to help food pass through it and into the gut. Then, the undigested food comes back out of the mouth. The pharynx sucks food into the gut through the mouth. The eyespot acts as photoreceptors. Finally, the auricles function like a nose. 3. Compare and contrast the digestive systems of Planaria and fluke. How does the digestive system suit their respective lifestyle?  Planaria has a well developed digestive system but fluke does not. However, they both have mouths. Fluke has suckers surrounding it’s mouth and a ventral sucker to help it hang onto its host because it’s lifestyle is parasitic. Planaria uses it mouth to discard of any undigested food. The food is released in the water which it’s lifestyle because it is marine. 4. Planaria lacks specialized gas exchange organs. How do you think Planaria accomplishes gas exchange?  Planaria accomplishes gas exchange through diffusion. 5. How is the movement achieved in earthworms? (Include circular muscle, longitudinal muscle, bristles, and hydroskeleton)  When the circular muscles contract, the coelom fluid moves forward which cause the anterior end of the earthworm to push forward. When the circular muscles relax, and the longitudinal muscles contract the posterior end is pulled forward. Then, the bristles detach and the process repeats again. The longitudinal and circular muscles also surround the true coelom which is filled with fluid that makes up the earthworm’s hydrostatic skeleton .

Discover more documents: Sign up today!

Unlock a world of knowledge! Explore tailored content for a richer learning experience. Here's what you'll get:

Access to all documents
Unlimited textbook solutions
24/7 expert homework help

Related Documents

BIO_120_Exercise_Nine_Genetics_and_Chewing_the_Starch_Worksheet_V2_F2023.docx

General Biology 1407 Instructor Finals Review.pdf

Gene Biol 1407 Lab Exam 2 Review.pdf

problem set #2.pdf

GENE 250 - Week 4 Quiz (ungraded).pdf

FA17109A-8E3D-46EF-AE42-DB82C9EF682A.jpeg

Bonus points block 1.docx

Quiz 1 .docx

Lab #4 Hypothesis Falsification Using a Ceratopteris richardii Developmental Mutant Assignment Part

BIS2C Study Quiz #3 Microbial Eukaryotes.docx

Extensions of Basic Principles Group Problems (2).docx

Lab 3 - E- TLN Osmosis Part 1 (1).pdf

Recommended textbooks for you

Biology 2e

Biology

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:OpenStax

Aquaculture Science

Biology

ISBN:9781133558347

Author:Parker

Publisher:Cengage

Biology: The Unity and Diversity of Life (MindTap...

Biology

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cengage Learning

Biology: The Unity and Diversity of Life (MindTap...

Biology

ISBN:9781305073951

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cengage Learning

Biology: The Dynamic Science (MindTap Course List)

Biology

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Cengage Learning

An Illustrated Guide To Vet Med Term

Biology

ISBN:9781305465763

Author:ROMICH

Publisher:Cengage

SEE MORE TEXTBOOKS

Recommended textbooks for you

Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Aquaculture Science
Biology
ISBN:9781133558347
Author:Parker
Publisher:Cengage
Biology: The Unity and Diversity of Life (MindTap...
Biology
ISBN:9781337408332
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Biology: The Unity and Diversity of Life (MindTap...
Biology
ISBN:9781305073951
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
An Illustrated Guide To Vet Med Term
Biology
ISBN:9781305465763
Author:ROMICH
Publisher:Cengage