Question

different between arthropoda and mollusca

Answer 1

Hey !!!!   ✴✴✴ Here's your answer ✴✴✴  ✨✨⬇⬇⬇⬇⬇⬇⬇⬇⬇✨✨    DIFFERENCE BETWEEN ARTHROPODA ND MOLLUSCA :-   ARTHROPODA :- ------------------------  1)Body is divided into head, thorax and abdomen.  2)Body is covered by chitinous exoskeletons.  3) They have jointed appendages.  4)Excretion occurs through coxal gland on malpighian tubules.  5) Respiration occurs through tracheae or book lungs, e.g. prawn, cockroach.  MOLLUSCA:- -------------------  1)Soft body divided into three distinct parts- a distinct head, visceral mass and muscular foot.  2)Body is covered by calcareous shell.  3)They have distinct foot for moving around.  4)Excretions occurs through nephridia.  5) Respiration occurs through gills .  HOPE MY ANSWER WILL HELP U.

Answer 2

Arthropoda :
joint appendages
exoskeleton of chitin
largest phylum (2/3 worlds animals are arthropods)
excretion : green glands or malpiaghian tubules or coxal gland
respiration : trachea or book lungs or book gills
metameric segmentation present
sensory organs : antennae or compound eyes or statocysts present
open ciculatory system

mollusca
2nd largest phylum
body undegmented
respiration is by gills
excretion : mantle cavity
sensory organ : osmophradum
radula for griding food
locomotion by muscular foot