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saul85 [17]
4 years ago
15

How do helpful variations increase in a species over time?

Chemistry
1 answer:
Vladimir [108]4 years ago
7 0

Answer:

through natural selection

Explanation:

Natural selection is the driving mechanism of the evolution of species. Organisms can survive more in an environment if they are capable to adapt the changing environmental conditions. After surviving they are also able to pass their modified trait into their future generations (evolution).

Helpful variations accumulate through natural selection, as the organisms that are better adapted to their environment reproduce offspring with the same variations.

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If a gas has a volume of 350 mL at 780 mm Hg, what pressure will be needed to cause its volume
makkiz [27]

The required pressure of the gas is 546 mmHg.

<h3>What is the relation between volume and pressure?</h3>

Relation between the volume and pressure of gas is explained through the ideal gas equation PV = nRT, and for the question required equation is:

P₁V₁ = P₂V₂, where

P₁ & V₁ are the initial pressure and volume.

P₂ & V₂ are the final pressure and volume.

On putting values from the question to the equation, we get

P₂ = (780)(350) / (500) =

P₂ = 546 mmHg

Hence required pressure is 546 mmHg.

To know more about ideal gas equation, visit the below link:

brainly.com/question/24236411

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