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Oct 4
Annelida:
1. Segmented body with distinct body segments called annuli.
2. Bilaterally symmetrical body.
3. Possess a coelom, a fluid-filled body cavity surrounded by mesoderm.
4. Have a closed circulatory system with blood vessels.
5. Possess a well-developed nervous system with a brain and nerve cords.
6. Have a complete digestive system with a mouth and anus.
7. Most species have setae, bristle-like structures on their body for movement and burrowing.
8. Reproduce sexually, with most species having separate sexes.
Arthropoda:
1. Exoskeleton made of chitin that provides protection and support.
2. Segmented body with distinct body regions: head, thorax, and abdomen.
3. Bilaterally symmetrical body.
4. Jointed appendages for movement and feeding.
5. Open circulatory system with a heart and hemolymph.
6. Well-developed nervous system with a brain and ventral nerve cord.
7. Have compound eyes for vision.
8. Most species undergo metamorphosis during their life cycle.
9. Reproduce sexually, with a variety of mating behaviors and reproductive strategies.
1. Segmented body with distinct body segments called annuli.
2. Bilaterally symmetrical body.
3. Possess a coelom, a fluid-filled body cavity surrounded by mesoderm.
4. Have a closed circulatory system with blood vessels.
5. Possess a well-developed nervous system with a brain and nerve cords.
6. Have a complete digestive system with a mouth and anus.
7. Most species have setae, bristle-like structures on their body for movement and burrowing.
8. Reproduce sexually, with most species having separate sexes.
Arthropoda:
1. Exoskeleton made of chitin that provides protection and support.
2. Segmented body with distinct body regions: head, thorax, and abdomen.
3. Bilaterally symmetrical body.
4. Jointed appendages for movement and feeding.
5. Open circulatory system with a heart and hemolymph.
6. Well-developed nervous system with a brain and ventral nerve cord.
7. Have compound eyes for vision.
8. Most species undergo metamorphosis during their life cycle.
9. Reproduce sexually, with a variety of mating behaviors and reproductive strategies.
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Google Gemini AI
Oct 4
Annelida
- Metamerism: Segmented body divided into identical segments, each containing a ganglion and other organs.
- Coelomate: Have a true body cavity lined with mesothelium.
- Bilaterally symmetrical: Dorsal-ventral and left-right symmetry.
- Annelid Parapodia: Paired, fleshy outgrowths on the sides of most segments for locomotion and respiration.
- Closed circulatory system: Blood flows through vessels, not open spaces.
- Excretion: Nephridia (small tubes) for excretion.
- Reproduction: Mostly sexual, with separate sexes; some species can reproduce asexually by fragmentation.
Arthropoda
- Metamerism: Segmented body, but segments may be fused or modified for specific functions.
- Exoskeleton: Hard, chitinous outer covering that protects the body and provides support.
- Jointed appendages: Paired, jointed appendages used for locomotion, feeding, reproduction, and other functions.
- Open circulatory system: Blood flows through open spaces (hemocoel) within the body.
- Tracheal or Gill Respiration: Gas exchange occurs through tracheae (air tubes) or gills.
- Malpighian tubules: Excretion occurs through these tubules within the digestive tract.
- Reproduction: Mostly sexual, with separate sexes; some species can reproduce asexually.
- Metamerism: Segmented body divided into identical segments, each containing a ganglion and other organs.
- Coelomate: Have a true body cavity lined with mesothelium.
- Bilaterally symmetrical: Dorsal-ventral and left-right symmetry.
- Annelid Parapodia: Paired, fleshy outgrowths on the sides of most segments for locomotion and respiration.
- Closed circulatory system: Blood flows through vessels, not open spaces.
- Excretion: Nephridia (small tubes) for excretion.
- Reproduction: Mostly sexual, with separate sexes; some species can reproduce asexually by fragmentation.
Arthropoda
- Metamerism: Segmented body, but segments may be fused or modified for specific functions.
- Exoskeleton: Hard, chitinous outer covering that protects the body and provides support.
- Jointed appendages: Paired, jointed appendages used for locomotion, feeding, reproduction, and other functions.
- Open circulatory system: Blood flows through open spaces (hemocoel) within the body.
- Tracheal or Gill Respiration: Gas exchange occurs through tracheae (air tubes) or gills.
- Malpighian tubules: Excretion occurs through these tubules within the digestive tract.
- Reproduction: Mostly sexual, with separate sexes; some species can reproduce asexually.
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