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A Study That Actually Tests What It Was Designed to Test

question 13

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A study that actually tests what it was designed to test and not something else is a(n) _____ study.


Definitions:

Acellular

Consisting of, or pertaining to, non-cellular structure, lacking cells.

Viruses

Microscopic infectious agents that replicate only inside the living cells of organisms, capable of causing a wide range of diseases.

Photosynthetic Bacteria

Bacteria capable of photosynthesis, a process that converts light energy into chemical energy, thereby producing oxygen as a by-product, crucial for earth's oxygen supply.

Chemosynthetic Bacteria

Microorganisms that obtain energy by converting inorganic molecules to organic matter, independent of sunlight.

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