Please answer asap and type your answer and do not copy from anywhere please In a study published in 1997, Muller and Godfray experimentally manipulated a community consisting of nettle aphids, grass aphids, and ladybird beetles. The ladybird beetles are predators of both aphid species. As their names suggest, grass aphids and nettle aphids have different host plants and, consequently, do not interact directly. Muller and Godfray increased densities of grass aphids by a fertilization treatment. This increase should lead to _______. a. a decrease in the density of nettle aphids due to keystone predation b. an increase in the density of nettle aphids due to apparent competition c. a decrease in the density of nettle aphids due to apparent competition d. an increase in the density of nettle aphids due to keystone predation

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Parasitic infections

A parasite is an organism that lives in the body of another organism and obtains food at the expense of the host. There are two kinds of parasites they are internal and external. An internal parasite lives inside another organism and is known as endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite.