These are some ways how scientists and engineers develop, use and refine models.
1. Imagine. They have to know what exactly trying to model. They have to imagine and brainstorm what are the things to be considered.
2. Reason. Next, they need to answer the questions brought from their brainstorming. They need to be able to reason out.
3. Calculate and Predict. Once they know it, that's the time they can start modelling and calculate - and predict.
Humans are least likely to survive.
Saturated and liquid at room temperature i believe
C. cells . are the basic units of life
Water is a polar molecule and the -OH bonds binds to the polar ionic substances and dissolves in it.
