1. Which of the following statements BEST describes a parasite? A an organism that lives inside another organism
B an organism that lives in or on a host, harming the host to help itself
C an insect that eats another organism
D a worm that turns other creatures into zombies

Your answer is B).

An organism that lives inside another is an Imposter (kinda sus ngl), an insect that eats other organisms is either a carnivore or a cannibal (depends on what it eats), a worm that turns things into zombies was probably pulled from Plague Inc.

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.    

format change of dna.