They are invertebrates because they have no bones
Different regions are more influenced by different religions based on where they are in the world. Climate, agriculuture and many other factors also can change how regions are culturally different due to religion. Some places are more religion dependent while others are not. I live in one of the biggest cities in the united states and if you don't want religious influence, you by no means have to have it. But meanwhile my grandma lives in a town that only about 1,000 people live and religion is everything to them.
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What river forms a large portion of the border between the United states and Mexico?
The Rio Grande River forms a large portion of the border between the United States and Mexico. The Rio Grande River is a global river that separates Mexico and the United States. It starts from Colorado, and then dribbles till Gulf of Mexico.
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B; As far as the relation between humans and the environment, it is obvious how much they relied on it. Not only as a food source, but for economic growth and sustainability as well. The other answers make valid points but in the context of this question, the only one that even mentions the relation is B.