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definitions
| Question | Answer |
|---|---|
| disease | abnormal condition a disorder of a structure or function, that affects part or all of an organism |
| infectious disease | disease caused by a virus,bacterium, fungus, or protist that is spread from an infected organism or the environment to another organism |
| Noninfectious disease | diseases that are noncommunicable and cannot be spread, sometimes called chronic diseases because they last a long time |
| Pathogen | disease producing organism |
| Vector | unicellular or multicellular organism that can be plantlike , animal like, or funguslike |
| Bacteria | unicellular microorganisms that have cell walls but lack organelles and an organized nucleus |
| Virus | infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host |
| Fungus | eukaryotic organisms that includes unicellular microorganisms such as yeasts and molds, as well as multicellular fungi that produce familiar fruiting forms known as mushrooms |
| Protist | unicellular or multicellular organism that can be plantlike , animal like, or funguslike |
| Host cell | living cell in which a virus can actively multiply or in which a virus can hide until activated by environmental stimuli. |
| Replication | viruses can copy themselves by attaching to a host cell and using the cell as a factory to copy itself. |
| Mutation | enable viruses to adjust to changes in their host cells and are the reason why viruses such as the flu are different every year |
| Antibody | a protein that can attach to a pathogen and make it useless, if you have the right antibodies you are immune to a virus |
| Antiviral drugs | medicine that prevents a virus from entering a cell, antiviral drugs are only good for one virus and not all viruses have one |
| Vaccine | mixture containing material from one or more deactivated pathogens (usually viruses), hleps bodies to form antibodies |
| Antibiotics | some bacteria produce these chemicals that limit the growth of other bacteria |
| Toxins | poisonous substances produced by some bacteria |
| Endospores | thick walled structures that some bacteria produce to survive during hard times |
| Epidemic | a widespread occurrence of an infectious disease in a community at a particular time |
| Pandemic | is an epidemic of infectious disease that has spread through human populations across a large region; for instance multiple continents, or even worldwide. |
| Variation | is a slight difference in an inherited trait of individual members of a species |
| Mutations | are random genetic changes that result in new variations |
| Natural Selection | the process by which populations of organisms with variations that help them survive, live longer, compete better and reproduce more than those that do not have those variations. |
| Adaptation | an inherited trait that increases an organism’s chance of surviving and reproducing in its environment |
| Camouflage | an adaptation that enables a species to blend in with its environment |
| Mimicry | an adaptation that imitates the appearance of another species |
| influenza | virus |
| giardia | bacteria |
| energy | the ability to cause change |
| work | the transfer of energy that occurs when a force is applied over a distance |
| power | the rate at which work is done |
| Renewable resource | an energy resource that is replaced as fast as, or faster than, it is used |
| Nonrenewable resource | an energy source that is available in limited amounts or that is used faster than it is replaced. |
| coal | continuous power but nonrenewable |
| natural gas | abundant but powerful greenhouse gas |
| nuclear | cheap to run but expensive to build |
| solar | no pollution from it but they're expensive |
| wind | comes clean but its unreliable |
| hydro | stores energy but destroy the environment when you build a dam |
Created by:
aydin.thomas