Q: What relationships exist between organisms in an ecosystem? What is an example of each within your own community?(12A)

A: In an ecosystem the different relationships are Parasitism, which is where one organism benefits and the other suffers. An example of this in our community is fleas and dogs. We have many dogs in our area and they can easily catch fleas so watch out! Commensalism is where one organism benefits and other is neither harmed nor does it benefit. An example of commensalism in our community is a tree and an Ivy plant. Ivy climb trees for support and the tree isn’t harmed and it also doesn’t benefit. Mutualism is where both organisms benefit. An example in our community is horses and grass. The horse eats the grass and produces fertilizer for the grass. Competition is when different species living together in a community compete for limited resources. An example in our community is weeds and grass. They compete with one another for sunlight and nutrients. And last but not least is predatory. This is where one organism hunts and feeds on the other. An example of this in our community is hawks and snakes.