How does Propionibacterium acnes cause acne in humans? Overuse of antibiotics can cause bacteria to clog pores in humans.
This type of bacteria is found on the human skin, and it can clog pores.
This type of bacteria often enters a cut and causes an infection in humans.
Close contact with an infected person can lead to acne in humans.

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg 

radon is correct hope this

japan is the correct anwser because i already took the test and i passed it