input with options: Fact 1: Many corals secrete an exoskeleton that builds up to become a coral reef. Fact 2: An insect has a hard outer covering called an exoskeleton. Given the two facts above, many corals secrete what to form a coral reef?
OPTIONS:
- Chlorophyll
- salt and water.
- The area was once underwater
- Chemical energy
- aqueous solution
- Organic compounds
- gastropod shells
- hard outer covering
output: hard outer covering

input with options: Fact 1: Amutation in the sex cells of a parent can cause a new trait to appear in the parent 's offspring. Fact 2: Child' is ambiguous between 'offspring' and 'immature offspring'. Given the two facts above, a mutation in parent's sex cells can cause new traits to appear in a what?
OPTIONS:
- concern
- pet
- parent
- germs
- haploid
- gametes
- DNA
- child
output: child

input with options: Fact 1: Arthropods are the largest phylum of invertebrates. Fact 2: Invertebrates are animals without a backbone. Given the two facts above, what are arthropods the largest phylum of?
OPTIONS:
- Something to move
- animals without a backbone
- Earth orbiting the Sun
- microorganisms
- absorb light energy
- converting mass to energy
- Generating heat
- remains of prehistoric life
output: animals without a backbone

input with options: Fact 1: Viruses often infect bacteria. Fact 2: Bacteria are normally classified as either 'good' bacteria or 'bad' bacteria. Given the two facts above, how many types can viruses infect?
OPTIONS:
- mice
- pigs
- bird
- RNA
- ova
- tiny
- HPV
- Two
output:
Two