অমেরুদণ্ডী প্রাণী
"পোকামাকড় (লাতিন" "কীটপতঙ্গ" "থেকে, গ্রিক" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "" "
পোকামাকড় কীসের শ্রেণী?