Microbes which break down matter in the environment.
What is a decomposer?
200
Qualitative results.
What are results obtained from senses or past experiences?
200
A mental assumption.
What is an inference?
200
Yes they are the largest type of microbe.
Are Protozoa the largest type of microbe?
200
'Bad air'
What does malaria mean?
200
Heating to 120 degrees Celsius to kill microbes.
What is the procedure of heat sterilisation?
300
On the X (horizontal axis).
Where on the graph does the independent variable go?
300
These show up as data that does not fit the other data and is generally not reproducible.
What is a random error?
300
Tetanus and anthrax.
What are 2 diseases bacteria can cause?
300
The skin and the mucous membrane, white blood cells, antibodies
What are the 3 lines of body defences?
300
The procedure of preserving foods in brine or vinegar.
What is pickling?
400
A line that shows trend and averages results in a graph.
What is a line of best fit?
400
This data looks consistent but all the data is actually incorrect. Patterns can be detected but interpolation and extrapolation from graphs are inaccurate.
What is a systematic error?
400
Yes, this microbe creates mould.
Does fungi create mould?
400
When the body has encountered a disease before and it comes again it can fight it off quickly before it develops.
What is immunity to a disease?
400
Break down foods we eat and help produce vitamins we need.
What do microbes in the gut do for the body?
500
The variable of the investigation which you have no control over.
What is a dependant variable?
500
Random errors and systematic errors.
What are the 2 basic types of error?
500
Oxygen + sugar= carbon dioxide & alcohol.
What is the fermentation process yeast undergoes?
500
He took a specimen from the infected area and grew them outside the body of the animal. The bacteria grew then injected the bacteria into the mice. The mice then died of anthrax.
What is the procedure Robert Koch performed to prove that human diseases were caused by bacteria?
500
Heating to 72 degrees Celsius for 15 seconds and then cooling to below 10 degrees Celsius. Used to preserve milk.