Avery Spencer
Desert biome
Food web:
parasitic relationship
a parasitic relationship is where one organism is benefited, but the other organism is harmed. for example a flea will latch on to a coyote and suck its blood. this benefits the flea because it gets a free meal, but it harms the coyote because it itches.
mutualism relationship
a mutualism relationship is where both organisms benefit. for example, the gila woodpecker will eat the parasites and bugs out of the saguaro cactus. the bird benefits because it gets a meal, and the cactus gets rid of the bugs.
commensalism relationship
a commensalism relationship is where one organism benefits and the other organism is not affected. for example, a hawk might build its nest in a cactus. the hawk benefits because it gets a shelter with protection, and the cactus is not affected.
how are humans affecting the environment?
you may think humans don't affect the desert biome much, but you'd be shocked at how much you actually do. if you've ever gone off roading in the desert you've already harmed it by possibly killing animals who blend into the dirt for safety. another affect we have is installing underground pipes, because they cause unstable surfaces and water runoff.the last example is military practice. the military has bases in the desert that could kill many plants and animals, however since most bases restrict public admission, lots of land is possibly saved from human harm.