Answer:
The contents of the cell, or the structures of the cell, allow the cell to be "specialized." Together with the cell's proteins, they allow the cell to do specific things. They allow a cell to act like a neuron or a bone cell or a skin cell.
Answer:
- The big bang produced dark energy, which accounts for some of the energy needed to expand the universe.
- The big bang theory explains all the energy and matter discovered by scientists.
Explanation: Because these are the examples of what they know and not what they "guess will happen".
The population growth of Europe is decreasing.
Explanation:
Europe, as a continent, is in the worst demographic situation. It is the only continent where it is predicted that the population will be decreasing in the coming decades. In fact, the majority of the countries in Europe have minimal population growth or have decrease in their populations already.
Taken as a whole, the continent experiences decrease in the population growth. This is due to the significantly lowered birthrates, so there is less and less young population, and more and more old population, thus aging populations. Over time, there will be less and less people for reproduction, and if the current trend continue, the continent will experience sharp decline in population in few decades.
The top three countries by population growth in Europe are:
- Luxembourg (1.90)
- Cyprus (1.27)
- Ireland (1.11)
The bottom three countries with largest population decline are:
- Latvia (-1.10)
- Lithuania (-1.10)
- Moldova (-1.06)
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