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nikitadnepr [17]
3 years ago
10

Need Help ASAP

Biology
2 answers:
Marat540 [252]3 years ago
8 0

Some minerals are widespread throughout Earth’s crust, but occur in such low quantities that miming is not economically practical. Examples are Cerium, Copper, Cryolite ore that is mined for the production of Aluminium, are all present in low quantities on the Earth's crust. The extraction of Gold and Platinum from deep within the Earth's crust is also very difficult and the economics is very complicated.

sesenic [268]3 years ago
3 0
The correct answer is pressure
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Answer:

Analogous structures

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Analogous structures are similar structures that evolved independently in two living organisms to serve the same purpose.

Analogous structures are examples of convergent evolution, where two organisms separately have to solve the same evolutionary problem – such as staying hidden, flying, swimming, or conserving water – in similar ways. The result is similar body structures that developed independently.

In the case of analogous structures, the structures are not the same, and were not inherited from the same ancestor. But they look similar and serve a similar purpose.

For example, the wings of an insect, bird, and bat would all be analogous structures: they all evolved to allow flight, but they did not evolve at the same time, since insects, birds, and mammals all evolved the ability to fly at different times.

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Further, in science the decisions are reached based on facts, not voting, so we also reject the answer D .

We are left with the answer C and this is also the best practice in science - when unsure, leave it as a hypothesis.
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