In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.
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Question: Question: If a dog is extremely unfit and unhealthy breeders will want it to have 
 Answer: less offspring

Answer: Genotypes with greater fitness produce more offspring and pass more copies of their alleles to the next generation.


Question: Question: Carla is pushing two carts down a street. One cart is heavy, the other is light. The heavy cart, compared to the light one, will accelerate 
 Answer: slowly

Answer: The greater the mass of an object, the less it will accelerate when a given force is applied.


Question: Question: Gaby is examining a particle that slowed down after she cooled some gaseous CO2. Why did the particle slow down? 
 Answer: it has less energy

Answer:
If the gas is cooled, the particles will move more slowly, because they will have less energy.