Which of the following organisms is a primary consumer of a prickly pear cactus? 01:15 Ecosystems and Biomes Which of the following organisms is a primary consumer of a prickly pear cactus?A - Harris's antelope squirrelB - VultureC - RattlesnakeD - Red-tailed hawkAnswer: A - Harris's antelope squirrel Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+