Answer:
1. Surface (substratum) is preconditioned by environment molecules.
4. Microbes attach and detach from the preconditioned surface.
2.Quorum sensing and the establishment of the extracellular matrix commences as microbes attach more stably.
3. Biofilm matures and some microorganisms escape to the plank-tonic state.
Explanation:
Biofilm is a process in which microorganism irreversibly attach and grow on the surface to produce extra cellular polymers that facilitate formation of matrix. The biofilm process takes three days for the formation after which thickness of plaque increases. There are 4 main steps in biofilm formation. Surface is preconditioned by environment molecules. The microbes attach the preconditioned surface. Establishment of extra cellular matrix and finally biofilm matures.
B. some substances must be dissolved in water before they can be used
Skeletal mass increases dramatically during childhood and adolescence, and decreases dramatically at the beginning of the fourth decade of life and decreases with age, with an exception of the skull.
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Answer:Short Answer
6. F (page 12) 7. F (page 11) 8. F (page 7) 9. T (page 18)
10. T (page 14)
1. Companies common to most fire departments include (Students should include five of the following): (1) Engine company: An engine company is responsible for securing a water source, deploying handlines, conducting search-and-rescue operations, and putting water on the fire. (2) Truck company: A truck company specializes in forcible entry, ventilation, roof operations, search-and-rescue operations above the fire, and deployment of ground ladders. They are also called ladder companies. (3) Rescue company: A rescue company usually is responsible for rescuing victims from fires, confined spaces, trenches, and high-angle situations. (4) Brush company: A brush company is dispatched to woodland and brush fires that larger engines cannot reach. (5) Hazardous materials company: A hazardous materials company responds to and controls scenes involving spilled or leaking hazardous materials. (6) Emergency Medical Services (EMS) company: An EMS company responds to and assists in transporting medical and trauma patients to medical facilities for further treatment. EMS personnel often have medications, defibrillators, and other equipment that can stabilize a critical patient during transport.
Explanation:
De answer is A!!!!!!!!!!!!!!!!!!!!!!!!!!!!
hope it helps!!!!!!!!!!!!!!!!!
a is right!!!!!!!!!!!!!
