Answer:
The answer is the theory of Island Biogeography
Explanation:
The theory of island biogeography or insular biogeography is based on the natural selection of individuals isolated in their own communities. Mainly used to describe group of animals or ecosystems that are usually kept isolated due to the surrounds like islands or dense forests. It's considere to be on of the best evidences towards the theory of evolution.
Answer:
B
Explanation:
The whole war was fought for to gain land to the east of the Mississippi in the Ohio Valley.
Answer:
Scarp retreat is a geological process through which the location of an escarpment changes over time.
Answer:
The Von Thunen model of agricultural land use was created by farmer and amateur economist J.H. ... Farmers in the Isolated State transport their own goods to market via oxcart, across land, directly to the central city. Therefore, there are no roads. Farmers act to maximize profits.
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The correct answer is - cyanobacteria.
The atmospheric oxygen came from the cyanobacteria. These were one of the earliest living organisms on Earth. The cyanobacteria was using photosynthesis in order to create its own food. The photosynthesis process requires sunlight, carbon dioxide, water, and oxygen. The oxygen is mostly released as a waste product from the process of photosynthesis, thus the cyanobacteria were literally releasing oxygen that was ending up into the atmosphere. As more and more cyanobacteria there were across the planet, more and more oxygen they were releasing into the atmosphere, slowly changing the composition of the atmosphere, and setting the basis of it as we know it now.
