Tag Archives | Invertebrates

Sections of Different Invertebrates | Zoology

After reading this article you will learn about the section of different invertebrates. 1. Scypha (= Sycon) sp. (Sponge): A. Longitudinal section: (Fig. 38.1) 1. Presence of ostia, incurrent canals, prosopyles, radial canals, apopyles, ex-current canals, gastric oscula in the wall; spongocoel at the centre, and osculum at the tip. 2. Body wall made up of two layers of cells, [...]

By |2016-08-24T10:06:27+00:00August 24, 2016|Invertebrate Zoology|Comments Off on Sections of Different Invertebrates | Zoology
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21 General Characteristics of Invertebrates

The following points highlight the twenty-one general characteristics of invertebrates. Some of the characteristics are: 1. Habitat 2. Numerical Strength 3. Shape 4. Size 5. Symmetry 6. Grades of Organization 7. The Presence or Absence of Germ Layers 8. Simple Integument 9. Multiple Movement Device 10. The Presence or Absence of Segmentation and Others. Characteristic # 1. Habitat: All the [...]

By |2016-05-02T10:38:50+00:00May 2, 2016|Invertebrate Zoology|Comments Off on 21 General Characteristics of Invertebrates
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