Multiple choice Which of the following sets belong to deserts? Opunlia, Camels, Pines Yak, Cow, Rat Cactus, Babool, Camel Hydrilla, Snake, Fish Reveal answer Fill a bubble to check yourself C Correct answer Explanation Yak and cow are the terrestrial animals, hydrilla and fish the aquatic organisms, so it is cactus, babool and camel which are the organisms belonging to deserts.