Would competition increase or decrease between 2 species if that limiting
resource became very scare and
eventually run out?

as resources become scarce because of population growth, the growth decreases after few years due to lack of resources and food.

it would be heredity

the answer is c most of the fortnite players usually buy v bucks to get the battle pass and other cosmetics but some players who are referred to as "no skins" don't   buy skins and are usually noobs.

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ok yes, but what is the question? as soon as you ask the actual question i will answer it. : )