Nematoda | Chelicerata |
Arthropoda Crustacea |
Hexapoda | |
Symmetry | Head of a nematode exhibits radial symmetry while the body is bilaterally symmetrical while cut (lengthwise) in half it will produce mirror image of the other half of the body | Chelicerata exhibit bilateral symmetry as explained for nematodes. | Crustaceans also exhibit bilateral symmetry | Bilateral symmetry is exhibited in hexapoda |
Cuticle Composition | Cuticle in nematode is made of collagen like proteins. | Cuticle is made of chitin and other hardened protein | Cuticle is made of chitin and calcium carbonate makes it more hardened and is called a shell in certain organisms. | Cuticle in hexapoda is chitinous in the procuticle layer with proteins and other substances while the epicuticle is a thin waxy water resistant layer, which lacks chitin. |
Skeletal system type | The cuticle covering provides the definite shape for these organisms acting as the exoskeleton. The fluid filled spaces inside the body provide a hydrostatic skeleton to support the muscles. | Exoskeleton made of the thick covering of the cuticle. | Exoskeleton is hard and gives definite shape and support to the organisms | Exoskeleton helps to maintain the shape and structural support. |
Any ciliated cells? | Sensory neuron is a ciliated cell in nematodes, but they are not motile. | No ciliated cells | Ciliated cells present. For eg. Chordotonal organs | Ciliated cells present. For eg. Chordotonal organs |
COMPLETE ALL THE TABLE Table 21.1 Summary of Ecdysozoan Characteristics Nematoda Chelicerata Arthropoda Crustacea Hexapoda Symmetry?...
TABLE 19.1 Summary Table of Animal Characteristics Tissue Type of Digestive Symmetry Organization Body Cavity Openings Animal Circulatory System Habitat Respiratory Organs Sponge Hydra Planarian Clamworm earthworm Roundworm Crayfish Grasshopper Sea star Lancelet
some help organizing this stuff please.
Plant Growth estions have on seed be of interest? diing 524 LAB TOPIC 19 Animal Diversity II: Nematoda. Arthronnda Behinodermata, and Chordata TABLE 19.2. Comparison of Organisms by Major Features 1. Tissue Organization a. distinct tissues absent: 5. Circulatory System a. none: b. distinct tissues present: b. open: 2. Symmetry a. radial: c. closed: 6. Habitat a. aquatic b. bilateral b. terrestrial: 3. Body Cavity a. acoelomate: c. parasitic b. pseudocoelomate: 7. Organs for...
11. Which of the following pairs are mismatched in arthropods? A. compound eyes-vision B. olfactory receptors-smell antennae - touch & sense environment tube feet-locomotion 12· The distinction between protostomes and deutensames is based on differences in their A. digestive tracts B. nervous systems C. circulatory systenss E. eye spots 13. Most mollusks have a A. jointed appendages B. suckers used in for feeding. C. radula D. tube feet E. teeth 14. Which of the following pairs are mismatched in mollusks,...