Question: Q: The process of breaking down food into nutrients is known as __________ Choices: - energy - absorption - filtration - digestion A:
Answer: digestion

Question: Q: What causes acid rain? Choices: - carbon dioxide - heavy pollution - chemicals in waterways - air pollution A:
Answer: air pollution

Question: Q: Deletions remove one or more what from the dna? Choices: - codons - exons - genes - nucleotides A:
Answer:
nucleotides