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tamaranim1 [39]
3 years ago
15

Natural selection is the process by which favorable traits tend to increase in frequency over time

Biology
1 answer:
juin [17]3 years ago
8 0
This is true, this happens because those with favorable traits are able to go on and reproduce while the weak ones die off and cannot reproduce. The resulting off spring will carry more favorable traits and the cycle continues until either the animal conqours the environment and becomes the apex predator (humans) or the species die off (dinosaurs)
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Why crossing over is an important process for genetic variation
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so that the genetic variations are not directly exact

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18. identify the three conditions under which ionic reactions can run to completion, and write an equation for each.
erastovalidia [21]

Formation of a gas, formation of a precipitate and formation of a slightly ionized product are the cases for the completion of ionic reactions.

<h3>What are the three conditions under which ionic reactions completed?</h3>

The three conditions under which ionic reactions can run to completion i.e. formation of a gas, formation of a precipitate and formation of a slightly ionized product.

K+(aq) + Br−(aq) + Ag+(aq) + C2H3O2−(aq) → K+(aq) + C2H3O2−(aq) + AgBr(s)

Mg2+(aq) + SO42−(aq) + Ba2+(aq) + 2NO3−(aq) → Mg2+(aq) + 2NO3−(aq) + BaSO4(s)

So we can conclude that formation of a gas, formation of a precipitate and formation of a slightly ionized product are the cases for the completion of ionic reactions.

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