The answer is B. Celts.
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Celts believed that collecting heads after a battle was one of the greatest honors. Heads were their trophies.
Answer:
Increase in population and desire to search for land
Based on this map, the following statements is true
Most of the agriculture in North America is located in the central United States.
The majority of agriculture in the United States is located in the Southwest.
OK my friend so basically new political structures grew because they relied on the help of wealth and mercenaries
Answer:
D. Both B and C are correct.
Explanation:
Heinrich Anton de Bary was the German botanist who is known for his work on the fungi and algae causing plant disease.
He coined the term "symbiosis" for the unrelated species which live together and mutually benefit others as he studied the formation of lichen, the symbiotic relationship between the fungus and the algae.
There were many limitations to the concept of the symbiotic relationship introduced by the Bary as his work was based on the assumptions that the interaction between the organism is fixed and has the amensalism interaction was not mentioned by him.
Thus, Option-D is the correct answer.
