Microbes:Friend or Foe - U -FD Flashcards
symptom
A symptom of an illness is something wrong with your body or mind that is a sign of the illness.
germ
A germ is a very small organism that causes disease. A germ is one kind of microbes.
organism
An organism is an animal or plant, especially one that is so small that you cannot see it without using a microscope.
harmful
Something that is harmful has a bad effect on something else, especially on a person’s health.
owe
If you owe money to someone, they have lent it to you and you have not yet paid it back. You can also say that the money is owing.
disease
A disease is an illness which affects people, animals, or plants, for example one which is caused by bacteria or infection.
sealed
sealed means closed
specific
If someone is specific, they give a description that is precise and exact(clear). You can also use specific to describe their description.
canister
A canister is a metal, plastic, or china container with a lid. It is used for storing food such as sugar and flour. We can also call it can.
fahrenheit
Fahrenheit is a scale for measuring temperature, in which water freezes at 32 degrees and boils at 212 degrees.
centigrade
Centigrade is a scale for measuring temperature, in which water freezes at 0 degrees and boils at 100 degrees.
immune system
Your immune system consists of all the organs and processes in your body which protect you from illness and infection.
organ
An organ is a part of your body that has a particular purpose or function, for example your heart or lungs.
process
A process is a series of actions which are carried out in order to achieve a particular result.
consist
Something that consists of particular things or people is formed from them.
appearance
Someone’s or something’s appearance is the way that they look.
tissue
In animals and plants, tissue consists of cells that are similar to each other in appearance and that have the same function.
gland
A gland is an organ in the body which produces chemical substances for the body to use or get rid of.
chemical substances
化学物质