The difference between them is that an ecosystem is a community of organisms and their environment. And a biosphere is all the living organisms.
Answer:
A person who studies Natural History
Explanation:
Natural History is the history of organisms. This includes, animals, plants (fungi too) in their natural environment.
The lac genes encoding enzymes are lacZ, lacY, and lacA. The fourth lac gene is lacI, encoding the lactose repressor—"I" stands for inducibility. One may distinguish between structural genes encoding enzymes, and regulatory genes encoding proteins that affect gene expression.
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