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klio [65]
3 years ago
5

Which scientific investigation does not include dependent and independent variables?

Biology
1 answer:
pickupchik [31]3 years ago
7 0

Answer:

Observing and counting bird populations

Explanation:

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The attached picture shows how bacteria gain antibiotic resistance. Firstly, a few individuals attain a beneficial mutation in their genetic material that accords them the capability to survive in an antibiotic. The individuals are hence able to survive and reproduce more than those individuals without the mutation. There is, therefore, a genetic shift in the population in favor of the resistant genotype. After generations, the whole population becomes antibiotic resistant.






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Igneous rock, or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava. The magma can be derived from partial melts of existing rocks in either a planet's mantle or crust.

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the number of protons, neutron and electron for a neutral atom of nitrogen is p:7E:7N:7

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