Box 2.
There are only 2 animals with less than 5 legs and both have tails. Box 2 is for animals with less than 5 legs and no tail.
If both animals have tails, Box 2 has no data to input into this classification system.
Hope this helps!
Experimentation makes it possible for researchers to isolate cause and effect by allowing the researchers to manipulate one factor while controlling the other factors. This is achieved by creating two groups, subjects are put in these groups randomly in order to reduce experimental biases.
The two groups are the experimental group and the control group. The subjects in the experimental group will be exposed to treatment while the subjects in the control group will not be exposed to the treatment.
Answer:
here is ur answer
Explanation:
it is a severe respiratory disease and it us a virus. it originated in china in 2003 and started to spread a pandemic. it was first recorded in a hotel in China
