1,000 years
In many parts of the world, trees can provide a climate history for hundreds of years, with some extending back 1,000 years or more.
<span>A person must inherit two copies of a defective CF gene -- one copy from each parent -- to have the disease. People who inherit only one copy are considered CF carriers and do not have the disease, but they can pass their copy of the defective gene on to their children.</span>
Answer:
sustancia formada por dos o más componentes unidos, pero no combinados químicamente. Las mezclas homogéneas no se pueden diferenciar a simple vista. Se conocen como soluciones que contienen un soluto y un solvente; por ejemplo, la sal mezclada con agua
Explanation:
1 wait what 2 i think A or D
The organelle is the nucleus, which is the control center of the cell; it acts as the brain.
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