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The hunter gatherer are wandering food collectors.
The hunter gatherer affected their environment by setting fire to prairies. They do this in order to have open fields that will be convenient for their hunting activities. Hunter gatherer brought about extinction of many big animals due to over hunting.
<h2>Answer:</h2>
Option B is correct.
B. In an exothermic reaction, excess energy is released as heat.
<h2>Explanation:</h2>
An exothermic reaction is a chemical reaction that releases energy by light or heat. It is the opposite of an endothermic reaction. Expressed in a chemical equation: reactants → products + energy. Exothermic Reaction means "exo" meaning releases and "thermic" means heat.
Even though the cladistic system organizes and clasifies organisms, the option that is not a characteristic is that it ranks organisms. This system <span> of classification is based on the phylogenetic relationships and evolutionary history of groups of organisms. It does not rank them</span>
Different species could be produced with hybridizatoin, showing that species can change.