write down the charateristics of arthropods with example
Polkadot13:
Arthropods have the following features.. 1.Exoskeleton 2.Segmented Bodies 3.Jointed Appendages 4.Bilateral Symmetry 5.Open Circulatory System.
And yeah the examples are insects (ant), crustaceans(lobster), arachnids(scorpions), centipedes and millipedes...
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General characters
Body have jointed appendages or legs (which are modified to different structures to perform different functions like jaws, gills, walking legs, paddle). There may be 3 pairs, 4 pairs, 5 pairs, many pairs.
Body is triploblastic.
Bilaterally symmetrical.
Organ system level of organization.
Body is covered with chitinous exoskeleton.
They are haemocoelomate. Coelom i.e. body cavity is filled with blood or fluid.
Head bears a pair of compound eyes and antenna.
Locomotion takes place by jointed appendages.
Digestive system is complete, straight and well developed.
Circulatory system is of open type i.e. do not have blood vessels and enters directly into the body chambers. The blood is colourless
Nervous system is of annelidian type, which consists of brain and ventral nerve cord.
Unisexual i.e. sexes are separate.
Fertilization is internal or external.
They are either oviparous or ovoviviparous.
Development may be direct or indirect.
Sensory organ include antennae, sensory hairs for touch and chemoreceptor, simple and compound eyes, auditory organs (in insects) and statocysts (in crustacean).
Body have jointed appendages or legs (which are modified to different structures to perform different functions like jaws, gills, walking legs, paddle). There may be 3 pairs, 4 pairs, 5 pairs, many pairs.
Body is triploblastic.
Bilaterally symmetrical.
Organ system level of organization.
Body is covered with chitinous exoskeleton.
They are haemocoelomate. Coelom i.e. body cavity is filled with blood or fluid.
Head bears a pair of compound eyes and antenna.
Locomotion takes place by jointed appendages.
Digestive system is complete, straight and well developed.
Circulatory system is of open type i.e. do not have blood vessels and enters directly into the body chambers. The blood is colourless
Nervous system is of annelidian type, which consists of brain and ventral nerve cord.
Unisexual i.e. sexes are separate.
Fertilization is internal or external.
They are either oviparous or ovoviviparous.
Development may be direct or indirect.
Sensory organ include antennae, sensory hairs for touch and chemoreceptor, simple and compound eyes, auditory organs (in insects) and statocysts (in crustacean).
The examples are horseshoe crabs, spiders, scorpions, sea spiders and mites. Myriapoda: millipedes, centipedes,
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Features of Arthropods are...
1.Exoskeleton
2.Segmented Bodies
3.Jointed Appendages
4.Bilateral Symmetry
5.Open Circulatory System.
Examples..
1. Insects (bee)
2. Crustaceans (lobster)
3. Arachnids (spider)
4. Centipedes
5. Millipedes
Hope you find it useful...
1.Exoskeleton
2.Segmented Bodies
3.Jointed Appendages
4.Bilateral Symmetry
5.Open Circulatory System.
Examples..
1. Insects (bee)
2. Crustaceans (lobster)
3. Arachnids (spider)
4. Centipedes
5. Millipedes
Hope you find it useful...
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