Many bacteria that exhibit gliding motility are able to use as a nutrient source insoluble material that they encounter while gliding.

Answer the following statement true (T) or false (F)


True

Biology & Microbiology

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Air flow in a microbiology laboratory should be:

a. from lower to higher risk areas. b. minimized as much as possible. c. optimized to prevent the settling of dan-gerous aerosols. d. well-filtered by recirculating it through numerous filters before recycling.

Biology & Microbiology

Helicase ____

a. proofreads the newly synthesized DNA b. relieves over-twisting ahead of the DNA replication fork c. rewinds the newly synthesized DNA strands into a double-stranded helix d. unwinds the double-stranded DNA helix e. binds DNA polymerase to the template strand

Biology & Microbiology

The anterior pituitary secretes more ACTH, leading to more glucocorticoids in plasma, which causes the anterior

pituitary to then secrete less ACTH. This is an example of ____ regulation.

a. amplification only b. positive feedback only c. negative feedback d. cascading feedback e. both amplification and positive feedback

Biology & Microbiology

Reptiles resemble __________ in being able to

__________. a. ray-finned fishes; freely leave the water b. birds; breathe by use of lungs c. ostracoderms; utilize their jaws d. amphibians; exchange gases across their skin e. lobe-finned fishes; exchange gases across their gills

Biology & Microbiology