Penicillin is the antibiotic produced by penicillium chrysogenum and its effective against gram-positive bacteria. the growth of which bacteria will most likely be affected by penicillium chrysogenum? select one or more: a. pseudomonas putida b. bacillus megaterium c. escherichia coli d. staphylococcus epidermidis

  b. Bacillus megaterium

d. Staphylococcus epidermidis

Explanation:  

a. Pseudomonas putida  is a Gram-negative, rod-shaped bacteria.

b. Bacillus megaterium  is a rod-like, Gram-positive bacteria.

c. Escherichia coli  is a Gram negative, rod shaped bacteria.

d. Staphylococcus epidermidis are gram positive rods, arranged in grape-like clusters.

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