S. pyogenes is a gram-positive bacterium. Gram-positive bacteria have structural differences that distinguish them from gram-negative organisms. a. True
b. False

True

Explanation:

Streptococci pyogenes is a gram positive bacterium that is found in the dental , collective tissues and in the respiratory tracts. It is different from gram negative bacteria because if it structure. It has a thick peptidoglylcan layer and no lipid membrane compared to gram negative that have thin peptidoglylcan layer and outer lipid membrane.

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