Match each cellular defense with the infection it would most likely target.
killer cell
a. virus-infected cell

b. tapeworm in the intestines

c. bacteria in a skin lesion

(A) Natural killer- virus-infected cell.

(C) Neutrophil - bacteria in skin lesion.

(B) Eosinophil -  tapeworm in the intestines.

Explanation:

Natural killer cells are a type of the cytotoxic lymphocyte that are critical to the innate immune system. NK cells are the cells which provide rapid responses to the virus-infected cells.

Neutrophils are type of the phagocyte which are found in bloodstream. During beginning of the acute phase of inflammation particularly which are a result of the bacterial infection, neutrophils are the first-responders of the inflammatory cells to migrate towards inflammation's site.

Eosinophils are variety of the white blood cells which are responsible for combating parasites and also certain infections. Thus it will mostly target tapeworm in the intestine.

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c