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science final
| Question | Answer |
|---|---|
| What is Hydroelectric power? | electrical energy produced by falling water. |
| What is wind power? | a type of energy that relies on a windmill driving an electric generator |
| how does coal generate power? | by burning coal it can generate power |
| What are some problems with relying on nonrenewable resources like fossil fuels? | You will eventually run out of nonrenewable resources and they cause lots of pollution |
| What are the two basic parts of a virus? | DNA and protein |
| What are the three main shapes of bacteria? | Cocci, Basilli, Spirilli |
| What positive roles do bacteria have in peoples lives? | Help digest food, produce vitamins, occupy niches that keep pathogens out. |
| What is the name of the process by which a bacteria cell divides into two daughter cells? | Binary Fission |
| How quickly can bacteria reproduce? | every 20 mins |
| What is a pathogen? | tiny organisms that cause communicable diseases, also known as parasites. harm the things they live on |
| what is a vector? | An organism, typically a biting insect or tick, that transmits a disease or parasite from one animal to another. |
| what does a virus need to be inside in order to multiply? | a host,a person or animal |
| How does wood rely on the sun? | The wood grows as a tree using the sun to make energy and photosynthesis. |
| How does water rely on the sun for energy? | water relies on the sun to create energy because it evaporates and when it rains it turns turbines creating energy. For it to evaporate it needs the sun for warmth. |
| How do viruses reproduce? | Viruses reproduce by injecting their own DNA into the cell of their host the create more viruses. |
| What are some diseases caused by viruses? | Shingles, HIV, Ebola, Measles, chicken pox. |
| If a virus visited you would it be helpful to have antibiotics on hand? why or why not? | No because antibiotics, are to fight bacteria and a virus is not a bacteria. |