Describe one structure or metabolic process that purple bacteria or cyanobacteria might have dispensed with once they became endosymbionts in a eukaryotic cell. Describe one structure or metabolic process that purple bacteria or cyanobacteria might have dispensed with once they became endosymbionts in a eukaryotic cell. One of the most important features the bacteria might have dispensed with is the cell wall. One of the most important features the bacteria might have dispensed with is the gas vacuole. One of the most important features the bacteria might have dispensed with is the flagellum. One of the most important features the bacteria might have dispensed with is cytoplasmic membrane.

The rapid decomposition of organic matter produces evidence which supports: the slow accumulation of coal deposits long ages of the earth rapid burial of vast amounts of vegetation biblical account of noah's flood

Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.

Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.