Parasites need a host. If a host tries to get rid of the parasite or kill it, then the parasite either has to leave the body or die.
Answer:
With millions of different kinds of organisms in the world, scientists must find order in all of this diversity. Scientists group living organisms into one or more of a few major categories as part discipline known as taxonomy. The bodies of organisms are organized into functional systems—cells are organized into tissues, and tissues are organized into organs. Body systems carry out critical functions, such as locomotion, reproduction, digestion, and circulation. All living things on Earth are composed of the same carbon-based, molecular building blocks.

Answer:
3
Explanation:
I think it is 3 because all other ones don't effect all types of species while three makes the most sense
Answer:The correct answer is option C. "Bacteria".
Explanation:he biosphere is the layer of the Earth where all living organisms live and interact with each other. The biosphere is a broad concept that includes all the regions of the Earth where an organism can live or where organic material can exist. Since bacteria is a living microorganism, it is considered a component of the biosphere.
Mark me as Brainliest
In a scientific it would be called a satellite, don't question it.<span />