JAMB - Biology (2001 - No. 33)
A freshwater pond may contain
tadpole, water boatman, leeches and crab
water beetle, shrimps, water snail and water bug
water lily, fish, water scorpion and dragon larva
pon skater, water lily, shark and mosquito larva
توضيح
Many organisms live in freshwater ponds, including Insects(dragon fly), frogs, fresh water snails, bacteria, daphnia, water lily, fishes etc