Question: Answer the following question given this paragraph: As food is pushed through the GI tract by peristalsis, it undergoes digestion. Digestion is the process of breaking down food into nutrients. There are two types of digestion: mechanical digestion and chemical digestion. Q: The process of breaking down food into nutrients is known as __________ A:
OPTIONS:
- energy
- absorption
- filtration
- digestion
Answer: digestion

Question: Answer the following question given this paragraph: Air pollution causes acid rain, ozone depletion, and global warming. Q: What causes acid rain? A:
OPTIONS:
- carbon dioxide
- heavy pollution
- chemicals in waterways
- air pollution
Answer: air pollution

Question: Answer the following question given this paragraph: Similar to chromosomal alteration mutations, deletion or insertion mutations add or remove genetic information. Small deletions or insertions in the DNA will alter the reading frame. Deletions remove one or more nucleotides from the DNA, whereas insertions add one or more nucleotides into the DNA. These mutations in the coding region of a gene may also alter the splicing of the mRNA, known as a splice site mutation . Mutations which alter the reading frame are known as frameshift mutations . Splice site mutations and frameshift mutations both can dramatically change the mRNA, altering the final protein product. Q: Deletions remove one or more what from the dna? A:
OPTIONS:
- codons
- exons
- genes
- nucleotides
Answer:
nucleotides