Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Question
Transcribed Image Text:### Animal Classification and Hormone Regulation
#### Question: Animal Identification
**Prompt**:
Name the animal shown in this picture.
**Image Description**:
The image shows a yellowish, elongated, cylindrical animal that appears to be a segmented or unsegmented worm-like organism.
**Options**:
- Nematoda
- Mollusca
- Annelida
- Cnidaria
- Platyhelminthes
---
#### Question 33: Hormone Regulation in Digestion
**Statement**:
Digestion is controlled by a cascade series of hormones. What hormone is released by the arrival of chyme into the small intestine?
**Options**:
- both CCK and Secretin
- LH
- CCK
- both LH and FSH
- Gastrin
---
**Explanation**:
1. **Animal Classification**:
- Depending on the morphology shown in the image, the likely classification could be one of the following phyla: Nematoda, Mollusca, Annelida, Cnidaria, or Platyhelminthes. Each of these groups has distinguishing characteristics which could help in the identification of the animal.
2. **Hormone Regulation in Digestion**:
- Different hormones play significant roles in digestive processes. Chyme arrival into the small intestine specifically triggers the release of certain hormones necessary for further digestion and absorption.
**Note**: Diagrams and visual images of these organisms often help in understanding and correctly classifying biological specimens, while knowledge of physiological processes aids in grasping complex bodily functions such as hormone regulation in digestion.
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