B. DNA.
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Four unifying principles form the foundation of modern biology<span>: cell theory, evolutionary theory, the gene theory and the </span>principle<span> of homeostasis. These </span>four principles<span> are the founding principles of each category of biology</span>
Answer:
I think B and D
Explanation:
A moraine is a mass of rocks and sediment carried down and deposited by a glacier, typically as ridges at its edges or extremity.