Answer:
Classification system changes because the scientists find new evidence in their studies.
Explanation: The world is always changing and growing and dying as well as developing, so over time things change. For example, as you grow up do you stay the same? No, you notice the physical changes happening, well thats sort of like how the earth and its ways are always changing as well.
The horsehoe crab because it was one of the first animals to ever live on earth
Genome
Explanation:
The genome of an organism is the summation of all the genes in the cells that hold information on how the organism is built and maintained. In higher organisms, the genome also contains non-coding regions that also play a significant role in the cells such as ensuring the integrity of chromosome ends. The genome of a human being is composed of approximately 3 billion base pairs.
The genome of organisms may not necessarily be found in the nucleus of cells, especially in eukaryotes, but in addition can be found even in membrane-bound organelles like the mitochondria and chloroplast.
Learn More:
Learn about the human genome project;
brainly.com/question/12572919
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