<h2>Answer:</h2>
A) classification of organisms
<h2>Explanation:</h2>
With the advancement of technology, many plants and animal were re-classified and reversed. For instance due to the advanced light microscope, which had high resolution and magnification, scientists were able to identify the structure of many organisms on a highly molecular level. Whitaker was a biologist who distinguished that fungi was separate from plants because fungi doesn’t have chlorophyll. Similarly there are so many evidences that resulted in the re-classification of organisms.
Well the U.S. consumes about 7.19 Billion barrels of petroleum related products in 2016.
The U.S. currently uses roughly 25% of all of the world's global reserves.
Hey, America likes oil, leave them alone
The land and the aquatic are the two types of global food webs
A unique feature of the nucleus is that it disassembles and re-forms each time mostcells divide. At the beginning of mitosis, the chromosomes condense, the nucleolus disappears, and the nuclear envelope breaks down, resulting in the release of most of the contents of the nucleus into the cytoplasm.
Hope that helped