Concept explainers
To explain: How the anatomy of Annelids can be called as “a tube within a tube”.
Concept introduction: Annelids are coelomate animals with true segmentation. They are triploblastic and bilaterally symmetrical. They are found in diverse habitats such as damp soil, mud, oceans and rock crevices.
The word annelida has been derived from Latin word ‘annuli’ which means little rings. The body of annelids is made up of a number of rings like segments called metameres. Each segment is separated from other by septa with repetition of organs in each septum. The phylum Annelida includes a number of animals such as earthworm, leeches and others.
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Chapter 33 Solutions
Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
- Please hand draw a picture of Clonorchis (Class Trematoda) and label its anatomy with the terms listed below. Note: Terms to label dawing with. Oral sucker, Ventral sucker, Pharynx, Intestine, Ovary, Yolk Gland, Uterus, Anterior testis, Posterior Testies. Please make sure to include all terms labeled in your drawing.arrow_forwardDescribe the annelid body plan, including body wall, segments, coelom and its compartments, and coelomic lining.arrow_forwardIllustrate and describe the life cycle of the following: Trichuris trichiura Please include references and conclusionarrow_forward
- Give the broad definition of Annelida.arrow_forwardA) State the function of the following external parts of the genus Cambarus (Class Crustacea): walking legs: opening of sperm duct: gills: excretory pore: abdomen: eyes What are the hairlike appendages called that anchor into the skin of annelids? What structures do earthworms have to help dispose of nitrogenous wastes? Briefly describe how earthworms reproduce and what structures are involved.arrow_forwardMale worms can identified by: 1)a long whiplike tail 2) the presence of spermatheca 3) the absence of a pharynx 4)the presence of a tail fanarrow_forward
- Explain the interaction of cuticle, body-wall muscles, and pseudocoelomic fluid in locomotion of nematodes.arrow_forwardDescribe in details diagnostic features and importance of Peaceae. Cover as many as possible points in details.arrow_forwardConsider the process of organogenesis. a) Describe how coelom-status impacts the process of organogenesis. b) How do organs develop and where (in which cavity)? When does this process occur?arrow_forward
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