Why does the pattern recognition strategy affect prokaryotic and eukaryotic pathogens as well as hosts

A Because all are complex cells with certain functions that cannot be greatly altered without affecting fitness.

B Because VSG switching may not be restricted to trypanosomes.

C Because all have proteins in their cell walls or cell membranes.

D None of these answers are correct.

The answer is C .Because all have proteins in their cell walls or cell membranes.

Explanation:

Pattern recognition strategy employs the use of pattern recognition receptors which are proteins for the recognition of molecules frequently found in pathogens. When they are recognized, the body then marks the cells for destruction.

Pattern recognition strategy affect prokaryotic and eukaryotic pathogens as well as hosts because all have proteins in their cell walls or cell membranes and they help in the recognition of pathogens or host for further action on them.

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

answer; ///(b) it is composed of four protein chains and four heme groups;