click below
click below
Normal Size Small Size show me how
Science 15 Key Ideas
Question | Answer |
---|---|
Into what two groups do scientists classify diseases? | noncommunicable and communicable |
What is a pathogen? | anything that causes a disease |
What are the four common types of pathogens? | protozoans, fungi, bacteria, and viruses |
Name some ways that pathogens are spread | by air water and contact |
How are noncommunicable diseases different from communicable diseases? | noncommunicable can not be spread by pathogens but communicable diseases can be spread |
What is an epidemiologist? | are scientists that study the causes and spread of diseases |
Name some barriers that help to keep pathogens out of your body | scabs and skin |
What are the three main categories of the body's defense system? | defensive barriers, Nonspesific defensive, and specific defenses |
How are antibodies and antibiotics similar? | they both destroy things |
How are antibodies and antibiotics different? | antibiotics are a chemical antibodies are proteins |
What is an allergen? | is anything that causes the immune system to have an allergic reactions |
What is an autoimmune disease? | A disorder that occurs when the immune system attacks the healthy cells that it should protect |
What are the different types of immunities? | active immunity and passive immunity |
What are examples of immune system malfunctions? | allergies immune deficiency and transplants |
What are the advantages of robotic surgery? | patents heal more quickly and spend less time in the hospitals |
What are the disadvantages of robotic surgery? | the machines are very expensive and they take about twice as long as normal surgeries |
What is the contribution of Dr. John Snow? | he helped figure out the cause of cholera |
1796 Edward Jenner | Doctor discovers smallpox vaccine |
1847 Ignaz Semmelweis | dirty hands spread disease |
1854 Florence Nightingale | nurse cleans hospitals saving lives |
1867 Joseph Lister | surgical doctor uses disinfectant s to kill microorganism's |
1868 Louis Pasteur | killing microorganism's stops communicable diseases |
1882 Robert Koch | speccific pathogens cause specific diseases |
1898 Martinus Beijerinck | discovery of small pathogen called virus |
1928 Alexander Fleming | medicine from mold kills bacteria |
1952 Jonas Salk | polio vaccine prevents epidemics |