It's C parasitism
for example tape worms are segmented flat worms that attach themselves to the inside of the intestine.They get food by eating the hosts of nutrients.While say the cow or pig get a disease,
In this population, what will occur is that there will be no evolution. Mutation is neccessary and important because they provide varitations that can result in evolutionary change. Other factors needed for evolution to occur are migration and selective pressure.
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First four are made of rock and rest are made of gases.
Atmospheres of all the planets are made of gases.
Stationary fronts occur when warm and cold air meet. This brings cloudy, and wet weather. So your answer would be C.
