I assume that the question here refers to the process of evolution. The "helpful variations" are small mutations that allow the organism to have a small advantage over other - and this organism can then pass this variation to its children better than other organisms, meaning that with time, more organisms will have it. This will accumulate over time and the percentage of organisms with this mutation will increase.
They used wood or more specifically red cedar wood the houses are called plank houses
The Arab Maghreb Union or AMU consists of Algeria, Libya, Mauritania, Morocco, and Tunisia.
When the countries of Tunisia and Morocco became independent countries, it was also during that moment that the concept of an economic union was first thought of. The chief of state of the 5 members of these countries manages the AMU.
When you purchase a vehicle, these are several factors that could determine the cost of your policy :
- Your Coverage and Deductibles
- The Types of the Vehicle
- How often and how far you drive the vehicles
- Location of your residency
- Your Driving Record
- Your Credit History
- Your Age and Marital Status
Since you provide no available options, your answer might be the one that doesn't included above
