Answer:
Base
Explanation:
law of superposition, a major principle of stratigraphy stating that within a sequence of layers of sedimentary rock, the oldest layer is at the base and that the layers are progressively younger with ascending order in the sequence.
They could look for similarities in the DNA or protein structuresof the organisms<span> and similarities in early development</span>
By separating the DNA from other tissues, then using an enzyme to break the DNA into short lengths.
Intensive farming practices include growing high-yield crops, using fertilisers and pesticides and keeping animals indoors.
It occurs in prophase I of meiosis