The answer is B. They have become habituated to human contact.
Answer:
D, 'cus Heterotrophs can't make their own food like plants or humans, and Autotrophs can make their own food. For example plants, or in this case bacteria
C. All cells arise form previously existing cells. This is because the scraped knee's cells would be replaced by the exact same ones that were removed. Kind of like "Out with the old and in with the new... yet the exact same..!"
Hope this helps!
Answer:
Are you referring to symbiotic relationships between organism? If so, the answer would be parasitism.
One organism, a parasite, takes advantage of another organism at the expense of the host organism.
Ex. A tick bites a dog for blood to use as food. The dog gets an uncomfortable bug bite and the dog might catch a tick borne disease.
