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Animal Kingdom — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYAnimal Kingdom5 Marks
Question
Bring out five differences between Annelida and Arthropoda. Name the blood-sucking ectoparasite of Annelida.
✓

Answer

 
Annelida
Arthropoda
1.
Body is externally divided into ring-like metameres.
Body is divided into head, thorax and abdomen.
2.
Locomotion is aided by chaetae/ parapodia.
Locomotion is aided by walking legs and/ or wings.
3.
There is a closed circulatory system.
There is an open circulatory system.
4.
Haemoglobin is dissolved in the plasma.
Haemolymph, the body fluid has no respiratory pigment.
5.
Animals are hemaphrodite, i.e., bisexual.
Animals are unisexual.
6.
Respiration is by moist, vascularised skin, i.e., cutaneous.
Respiration is by tracheae, book-lungs or gills.
7.
Excretion is by nephridia.
Excretion is by malpighian tubules or green glands.

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