A) a common ancestor
Homologous structures are structures that are similar in related organisms. There is a basic pattern of bones which can be inherited from a common ancestor
Answer:
Soil Tillage, Climate Change and Soil Carbon Sequestration
Explanation:
Valves, they are like flaps of muscle that keeps the blood in its place util its ready to be pumped along.
Answer:
B. Plants can make their own good
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