Answer:
for number 2 its mosses or lichens
The answer is brain and spinal cord
The meatpacking plants were mainly concerned about making money.
Microscopical observations show the presence of simple in structure, abundant, and pervasive microorganisms. Researchers at the time came to the conclusion that there was a life force in the air.
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Original source of sand was from rocks rubbing up against each other in the ocean and the current of water in the ocean bringing them to land.