I’m sorry but do you want me to answer all of these I just need a yes or no I’ll answer in the comments (:
Yes it is, an example is a group of animals not treated with it died, but the animals that were survived--
The variables are defined as the factors in an experiment, which are liable to change. The variable can be dependent or independent. The Independent variable is a variable, which is unaffected by the changes in the other variables.
In this case, the brand of the food Shara feeds to the rats is independent factor, but it is changes in the system, so, it is an independent variable.
The effect on the weight of the rat is dependent on the brand of food they are consuming. So, the weight of rats is dependent variable.
Answer:
bones
Explanation:
other parts such as skin etc is made up of soft tissue so it decomposes easily