All controlled experiments would have only one variable. If there were more than one variable the outcome of your experiment could be for multiple reasons and thus you would not be able to test whether your specific hypothesis was valid.
Answer: Certain indicators lend clues to this expansion. Wherever we have evidence of family size, families appear to be larger. It does not appear that more babies are being born, but rather that more of them are surviving and people were living longer.
There was no plague or significant famine throughout this period. Generally speaking, this was a period of warm, dry climate through much of Europe, when enormous amounts of new land were brought under cultivation. People did not bring new land under cultivation for no reason. There were mouths to feed and diets improved.
Explanation:
Answer:
The circulatory system interacts with every organ and system in the body hence, it is vital for every organ and system to function properly.
The circulatory system carries oxygen to the lungs and takes the waste materials out of it. Hence, a malfunction in the circulatory system can cause the respiratory system to not work properly. Severe damages will be caused to the body if oxygen is not taken to and from the lungs.
The circulatory system is also involved in carrying waste materials to the kidneys. It helps carry the waste materials out of our bodies. Malfunctioning of the circulatory system can cause no excretion of wastes from the body which will eventually lead to the death of the organism.
Answer:
The process is called desalination,
Explanation:
During<span> what </span>phase<span> of the </span>cell cycle<span> does </span>cell division occur<span>? </span>S<span> (</span>synthesis<span>). </span>During<span> ... </span>G2<span>, </span>S<span>, G1, M. </span>Cell<span>grows, </span>DNA replication<span>, </span>cell<span> prepares for mitosis, </span>cell division<span> ... of the </span>cell cycle<span>? Interphase- G, </span>S<span>, </span>G2<span>normal </span>cell growth<span>/prep for division.</span>
