. What type of nervous system does the flatworm exhibit? A) Centralized nervous system B) Peripheral nervous system C) Somatic nervous system D) Diffuse nervous system 2. Why is it beneficial to a flatworm to have this type of nervous system? Relate your answer to the type of symmetry that a flatworm has.

. What type of nervous system does the flatworm exhibit? A) Centralized nervous system B) Peripheral nervous system C) Somatic nervous system D) Diffuse nervous system 2. Why is it beneficial to a flatworm to have this type of nervous system? Relate your answer to the type of symmetry that a flatworm has.

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

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

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

Chapter31: Animal Phylogeny, Acoelomates, And Protostomes

Section: Chapter Questions

Problem 10TYK: What is the major morphological innovation seen in annelid worms? a. a complete digestive system b....

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What is the major morphological innovation seen in annelid worms? a. a complete digestive system b. image-forming eyes c. a respiratory system d. an open circulatory system e. body segmentation
How does segmentation enhance annelid locomotion? a. Segmentation creates repeating body structures so the entire organism functions in synchrony. b. Segmentation allows specialization of different body regions. c. Neural segmentation allows annelids to localize sensations. d. Muscle contractions can be localized to specific regions of the body to coordinate movement.
Where are most of the internal organs located in an earthworm? a). along the dorsal surface b). along the ventral surface c). at the posterior end d). at the anterior end e). through the length of the longitudinal axis
Although they are related, the digestive system of an earthworm and Ascaris are very different. Why do you think this is?
1. State the function of the following parts of the genus Romalea (grasshopper): antenna, tympanum, spiracles, ovipositor (female), gastric caeca, malphigian tubules, tracheae, air sacs 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.
What is the key difference between the digestive tract of earthworm and a flatworm?
Earthworm Describe the internal anatomy of the earthworm to those of the clam. What is the digestive, circulatory, reproductive, and nervous system of the earthworm?
The nervous system of the Hydra is _______ _______ while the flatworm’s is ________ _________. a. radially symmetrical, bilaterally symmetrical b. bilaterally symmetrical, radially symmetrical c. laterally symmetrical, radially asymmetrical d. bilaterally asymmetrical, radially asymmetrical
1. How are the lifestyle (free – living vs parasitic) related to the morphology of the annelids? 2. What are the different adaptations of phylum Annelida in different habitat?
Describe the life cycle of the human hookworm? How was john D. Rockfeller and southern US commerce involved in this story?how far away from a pile of poop can a hookworm crawl before dying? How did Rockfeller's medical investigators eradicate the hookworm problem, as well as many excrment- related parasitic disease?
What is the advantage to the segmentation that is exemplified in the Phylum Annelida? Check all that apply. A)The annelid may still survive if one segment is damaged. B)Segments can be specialized. C)The importance of segmentation is unclear. D)Vital structures are repeated in each segment. E)Locomotion is more efficient.
1. What is a casque? Which members of Casuariiformes have one, and what is though to be its function? 2. Please describe how cassowaries have weaponized their feet.