Answer:
Virus are a type of infectious agents it in almost all scenarios it will infect as many as cells it can before your WBC's can kill them
And in fact you are right now only in the state of Disease free. Every second your body is fighting off diseases. So to support your immune system eat Lots of Healthy food and stay safe!
<span>c. euglena have chloroplasts
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Chloroplasts are organelles that are responsible for the photosynthetic functioning of an organism.Photosynthesis is the process by which an organism uses the photons to produce energy. These organisms uses the sun, together with the acquired resource of water and carbon dioxide to create sugar and process into energy. </span>
In the enviroment isolated , animals have the time to "adapt" t their surroundings.