Answer:
impossible every experiment have a conclusion
Answer:
Salt marshes occur throughout the world, particularly in middle to high latitudes. They thrive along protected shorelines, and they are a common habitat in estuaries. In the U.S., salt marshes can be found on every coast. Approximately half of the nation's salt marshes are located along the Gulf Coast.
When someone smokes cigarettes and drinks three alcoholic beverages a day, he or she is contributing to his or her cancer risk via <span>promotion.
Researchers have discovered that the combination of tobacco and alcohol increases the risk of cancer in </span>throat, oral cavity, esophagus and <span>larynx.
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It requires energy when a substance must travel against a concentration gradient through the membrane
<span>A. Natural selection
Able to find more food means more likely to survive - survival of the fittest i.e. natural selection.</span>
