In order to create a sense of space this technique is based on the observation that distant objects appear less distinct, more pale, and bluer than objects that are close to the viewer.  You will see this technique used in outdoor scenes.  Discovered by Leonardo da Vinci.

This is line that really exists.

A new microbe has been discovered in the rumen of sheep. Microscopy shows no evidence of a nucleus and biochemical studies of the cell wall demonstrate the lack of peptidoglycan. Metabolic studies show that this microbe generates methane. This microbe would most likely be classified in ______.

Based on the table of attributes given below, which of the following statements are FALSE? Characteristic                        Bacterium A           Bacterium B Endospore formation             yes                            no Capsule                                    no                             yes Type IV pili                              yes                            no Flagella                                    no                             no Morphology                            bacillus                     bacillus  

Salmonella enterica Typhimurium produces endotoxin. A student performs a Gram stain on the organism and observes Gram positive cells. The student must have made an error during the Gram stain process. 

    Based upon the information above, organism B:

One of the main differences between eukaryotes and prokaryotes is the presence/absence of what structure?

Penicillin and penicillin derivatives target what cellular processes?

A student performs a Gram stain on a mixed culture and leaves the decolorizer on the slide for 30 seconds. Based on your knowledge of the Gram stain procedure, Gram-positive organisms will appear __________ and Gram-negative organisms will appear __________ under the microscope.

If the decolorizer is NOT left on the specimen long enough in the Gram-staining procedure, Gram-positive organisms will be stained __________ and Gram-negative organisms will be stained __________ after the decolorizing step.